Search references:
| 481. | Fässler, Thomas; Boyko, Marina; Hlukhyy, Viktor: K20Ga6Bi13.294 – the First Compound in the Ternary A‐Ga‐Bi System Comprising Cyclic tris‐meta Borate‐Analogous [Ga3Bi6]9‐ Units and Bi2 Dumbbells. In: Zeitschrift für anorganische und allgemeine Chemie, 646 , 2020. (Type: Journal Article | Links | BibTeX) @article{Faessler2020, title = {K20Ga6Bi13.294 – the First Compound in the Ternary A‐Ga‐Bi System Comprising Cyclic tris‐meta Borate‐Analogous [Ga3Bi6]9‐ Units and Bi2 Dumbbells}, author = {Thomas Fässler and Marina Boyko and Viktor Hlukhyy}, doi = {10.1002/zaac.201900292}, year = {2020}, date = {2020-01-01}, journal = {Zeitschrift für anorganische und allgemeine Chemie}, volume = {646}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 482. | Fässler, Thomas; Mayer, Kerstin; Dums, Jasmin; Benda, Christian; Klein, Wilhelm: Solvate‐Induced Metallization: Flat 1∞[Bi1‐] Zigzag Chains in Metallic KBi · NH3 versus 1∞[Bi1‐] Helices in Semiconducting KBi. In: Angewandte Chemie, 132 , 2020. (Type: Journal Article | Links | BibTeX) @article{Faessler2020a, title = {Solvate‐Induced Metallization: Flat 1∞[Bi1‐] Zigzag Chains in Metallic KBi · NH3 versus 1∞[Bi1‐] Helices in Semiconducting KBi}, author = {Thomas Fässler and Kerstin Mayer and Jasmin Dums and Christian Benda and Wilhelm Klein}, doi = {10.1002/ange.201915735}, year = {2020}, date = {2020-01-01}, journal = {Angewandte Chemie}, volume = {132}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 483. | Löhrer, Franziska C; Senfter, Christoph; Schaffer, Christoph J; Schlipf, Johannes; González, Daniel Moseguí; Zhang, Peng; Roth, Stephan V; Müller-Buschbaum, Peter: Light-Induced and Oxygen-Mediated Degradation Processes in Photoactive Layers Based on PTB7-Th. In: Advanced Photonics Research, 1 (1), pp. 2000047, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Loehrer2020, title = {Light-Induced and Oxygen-Mediated Degradation Processes in Photoactive Layers Based on PTB7-Th}, author = {Franziska C Löhrer and Christoph Senfter and Christoph J Schaffer and Johannes Schlipf and Daniel Moseguí González and Peng Zhang and Stephan V Roth and Peter Müller-Buschbaum}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adpr.202000047}, doi = {https://doi.org/10.1002/adpr.202000047}, year = {2020}, date = {2020-01-01}, journal = {Advanced Photonics Research}, volume = {1}, number = {1}, pages = {2000047}, abstract = {Low-bandgap polymers are sensitive to various degradation processes, which strongly decrease their lifetime. The chemical and physical changes occurring in the low-bandgap polymer with benzodithiophene units poly[4,8-bis(5-(2-ethylhexyl)thiophene-2-yl)benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-2-carboxylate] (PTB7-Th) and its blend with the fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) are followed during irradiation-induced aging by combination of various characterization methods. The active layer morphology is investigated using atomic force microscopy (AFM) as well as in-operando grazing incidence small angle X-ray scattering (GISAXS), indicating morphological alterations and material loss due to chemical modifications. Optical spectroscopy gives insights into these chemical processes which lead to significant absorption losses under ambient conditions. Independent of the energy of the absorbed photons, but only in combination with oxygen, the excitation of the polymer leads to a fatal increase in oxidation probability. Fourier transform infrared (FTIR) data highlight the sensitivity of the conjugated polymer backbone to oxidation, a result of lost conjugation and therefore absorption capability. With combined AFM height and infrared (IR) mapping, the chemical degradation and material loss is confirmed on a nanoscale. Although the chemical structure is seriously damaged, the blend morphology is not undergoing major changes.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Low-bandgap polymers are sensitive to various degradation processes, which strongly decrease their lifetime. The chemical and physical changes occurring in the low-bandgap polymer with benzodithiophene units poly[4,8-bis(5-(2-ethylhexyl)thiophene-2-yl)benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-2-carboxylate] (PTB7-Th) and its blend with the fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) are followed during irradiation-induced aging by combination of various characterization methods. The active layer morphology is investigated using atomic force microscopy (AFM) as well as in-operando grazing incidence small angle X-ray scattering (GISAXS), indicating morphological alterations and material loss due to chemical modifications. Optical spectroscopy gives insights into these chemical processes which lead to significant absorption losses under ambient conditions. Independent of the energy of the absorbed photons, but only in combination with oxygen, the excitation of the polymer leads to a fatal increase in oxidation probability. Fourier transform infrared (FTIR) data highlight the sensitivity of the conjugated polymer backbone to oxidation, a result of lost conjugation and therefore absorption capability. With combined AFM height and infrared (IR) mapping, the chemical degradation and material loss is confirmed on a nanoscale. Although the chemical structure is seriously damaged, the blend morphology is not undergoing major changes. |
| 484. | Restle, Tassilo M F; Dums, Jasmin V; Raudaschl-Sieber, Gabriele; Fässler, Thomas F: Synthesis, Structure, Solid-State NMR Spectroscopy, and Electronic Structures of the Phosphidotrielates Li3AlP2 and Li3GaP2. In: Chemistry – A European Journal, 26 (30), pp. 6812-6819, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Restle2020, title = {Synthesis, Structure, Solid-State NMR Spectroscopy, and Electronic Structures of the Phosphidotrielates Li3AlP2 and Li3GaP2}, author = {Tassilo M F Restle and Jasmin V Dums and Gabriele Raudaschl-Sieber and Thomas F Fässler}, url = {https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/chem.202000482}, doi = {https://doi.org/10.1002/chem.202000482}, year = {2020}, date = {2020-01-01}, journal = {Chemistry – A European Journal}, volume = {26}, number = {30}, pages = {6812-6819}, abstract = {Abstract The lithium phosphidoaluminate Li9AlP4 represents a promising new compound with a high lithium ion mobility. This triggered the search for new members in the family of lithium phosphidotrielates, and the novel compounds Li3AlP2 and Li3GaP2, obtained directly from the elements via ball milling and subsequent annealing, are reported here. It was unexpectedly found through band structure calculations that Li3AlP2 and Li3GaP2 are direct band gap semiconductors with band gaps of 3.1 and 2.8 eV, respectively. Rietveld analyses reveal that both compounds crystallize isotypically in the orthorhombic space group Cmce (no. 64) with lattice parameters of a=11.5138(2)}, keywords = {}, pubstate = {published}, tppubtype = {article} } Abstract The lithium phosphidoaluminate Li9AlP4 represents a promising new compound with a high lithium ion mobility. This triggered the search for new members in the family of lithium phosphidotrielates, and the novel compounds Li3AlP2 and Li3GaP2, obtained directly from the elements via ball milling and subsequent annealing, are reported here. It was unexpectedly found through band structure calculations that Li3AlP2 and Li3GaP2 are direct band gap semiconductors with band gaps of 3.1 and 2.8 eV, respectively. Rietveld analyses reveal that both compounds crystallize isotypically in the orthorhombic space group Cmce (no. 64) with lattice parameters of a=11.5138(2) |
| 485. | Trimpl, Michael J; Wright, Adam D; Schutt, Kelly; Buizza, Leonardo R V; Wang, Zhiping; Johnston, Michael B; Snaith, Henry J; Müller-Buschbaum, Peter; Herz, Laura M: Charge-Carrier Trapping and Radiative Recombination in Metal Halide Perovskite Semiconductors. In: Advanced Functional Materials, 30 (42), pp. 2004312, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Trimpl2020, title = {Charge-Carrier Trapping and Radiative Recombination in Metal Halide Perovskite Semiconductors}, author = {Michael J Trimpl and Adam D Wright and Kelly Schutt and Leonardo R V Buizza and Zhiping Wang and Michael B Johnston and Henry J Snaith and Peter Müller-Buschbaum and Laura M Herz}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202004312}, doi = {https://doi.org/10.1002/adfm.202004312}, year = {2020}, date = {2020-01-01}, journal = {Advanced Functional Materials}, volume = {30}, number = {42}, pages = {2004312}, abstract = {Abstract Trap-related charge-carrier recombination fundamentally limits the performance of perovskite solar cells and other optoelectronic devices. While improved fabrication and passivation techniques have reduced trap densities, the properties of trap states and their impact on the charge-carrier dynamics in metal-halide perovskites are still under debate. Here, a unified model is presented of the radiative and nonradiative recombination channels in a mixed formamidinium-cesium lead iodide perovskite, including charge-carrier trapping, de-trapping and accumulation, as well as higher-order recombination mechanisms. A fast initial photoluminescence (PL) decay component observed after pulsed photogeneration is demonstrated to result from rapid localization of free charge carriers in unoccupied trap states, which may be followed by de-trapping, or nonradiative recombination with free carriers of opposite charge. Such initial decay components are shown to be highly sensitive to remnant charge carriers that accumulate in traps under pulsed-laser excitation, with partial trap occupation masking the trap density actually present in the material. Finally, such modelling reveals a change in trap density at the phase transition, and disentangles the radiative and nonradiative charge recombination channels present in FA0.95Cs0.05PbI3, accurately predicting the experimentally recorded PL efficiencies between 50 and 295 K, and demonstrating that bimolecular recombination is a fully radiative process.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Abstract Trap-related charge-carrier recombination fundamentally limits the performance of perovskite solar cells and other optoelectronic devices. While improved fabrication and passivation techniques have reduced trap densities, the properties of trap states and their impact on the charge-carrier dynamics in metal-halide perovskites are still under debate. Here, a unified model is presented of the radiative and nonradiative recombination channels in a mixed formamidinium-cesium lead iodide perovskite, including charge-carrier trapping, de-trapping and accumulation, as well as higher-order recombination mechanisms. A fast initial photoluminescence (PL) decay component observed after pulsed photogeneration is demonstrated to result from rapid localization of free charge carriers in unoccupied trap states, which may be followed by de-trapping, or nonradiative recombination with free carriers of opposite charge. Such initial decay components are shown to be highly sensitive to remnant charge carriers that accumulate in traps under pulsed-laser excitation, with partial trap occupation masking the trap density actually present in the material. Finally, such modelling reveals a change in trap density at the phase transition, and disentangles the radiative and nonradiative charge recombination channels present in FA0.95Cs0.05PbI3, accurately predicting the experimentally recorded PL efficiencies between 50 and 295 K, and demonstrating that bimolecular recombination is a fully radiative process. |
| 486. | Lei, Lin; Wang, Weijia; Wang, Chao; Fan, Huiqing; Yadav, Arun Kumar; Hu, Neng; Zhong, Qi; Müller-Buschbaum, Peter: Hydrogel-supported graphitic carbon nitride nanosheets loaded with Pt atoms as a novel self-water-storage photocatalyst for H2 evolution. In: J. Mater. Chem. A, 8 , pp. 23812-23819, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Lei2020, title = {Hydrogel-supported graphitic carbon nitride nanosheets loaded with Pt atoms as a novel self-water-storage photocatalyst for H2 evolution}, author = {Lin Lei and Weijia Wang and Chao Wang and Huiqing Fan and Arun Kumar Yadav and Neng Hu and Qi Zhong and Peter Müller-Buschbaum}, url = {http://dx.doi.org/10.1039/D0TA07805K}, doi = {10.1039/D0TA07805K}, year = {2020}, date = {2020-01-01}, journal = {J. Mater. Chem. A}, volume = {8}, pages = {23812-23819}, publisher = {The Royal Society of Chemistry}, abstract = {Graphitic carbon nitride (g-C3N4) exhibits an excellent photocatalytic performance as a powder, especially under visible light irradiation. However, it encounters great challenges for practical applications. For instance, to avoid aggregation and precipitation, a continuous stirring process is required for the bare g-C3N4 powder during the photocatalytic reaction. In addition, recycling of the powder photocatalyst is complicated and usually not environment friendly. To overcome these drawbacks, we present a hybrid materials. This material combines g-C3N4 nanosheets loaded with cocatalyst Pt atoms (CN) with a polymer hydrogel. In the ready-to-use photocatalyst, CN is well distributed in the hydrogel matrix. Water stored in the hydrogel can serve as a water reservoir for the photocatalytic water splitting. Due to the intermolecular interactions between CN and the hydrogel, a 3D network with a small-sized nanostructure is formed, which enhances the light absorption and the charge carrier separation. As a result, the H2 evolution rate is 7437 μmol h−1 g−1, which is 130% higher than that of the bare CN powder in water. Furthermore, the hydrogel-supported CN is able to function under ambient environment conditions without any significant reduction of the photocatalytic performance, as compared to the bare CN powder. In the hybrid material, the combination of hydrogel and CN provides a possibility for the photocatalyst to work without a water environment and accomplish an efficient H2 evolution.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Graphitic carbon nitride (g-C3N4) exhibits an excellent photocatalytic performance as a powder, especially under visible light irradiation. However, it encounters great challenges for practical applications. For instance, to avoid aggregation and precipitation, a continuous stirring process is required for the bare g-C3N4 powder during the photocatalytic reaction. In addition, recycling of the powder photocatalyst is complicated and usually not environment friendly. To overcome these drawbacks, we present a hybrid materials. This material combines g-C3N4 nanosheets loaded with cocatalyst Pt atoms (CN) with a polymer hydrogel. In the ready-to-use photocatalyst, CN is well distributed in the hydrogel matrix. Water stored in the hydrogel can serve as a water reservoir for the photocatalytic water splitting. Due to the intermolecular interactions between CN and the hydrogel, a 3D network with a small-sized nanostructure is formed, which enhances the light absorption and the charge carrier separation. As a result, the H2 evolution rate is 7437 μmol h−1 g−1, which is 130% higher than that of the bare CN powder in water. Furthermore, the hydrogel-supported CN is able to function under ambient environment conditions without any significant reduction of the photocatalytic performance, as compared to the bare CN powder. In the hybrid material, the combination of hydrogel and CN provides a possibility for the photocatalyst to work without a water environment and accomplish an efficient H2 evolution. |
| 487. | Tilmann, Benjamin; Grinblat, Gustavo; Berté, Rodrigo; Özcan, Mehmet; Kunzelmann, Viktoria F; Nickel, Bert; Sharp, Ian D; Cortés, Emiliano; Maier, Stefan A; Li, Yi: Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics. In: Nanoscale Horiz., 5 , pp. 1500-1508, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Tilmann2020, title = {Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics}, author = {Benjamin Tilmann and Gustavo Grinblat and Rodrigo Berté and Mehmet Özcan and Viktoria F Kunzelmann and Bert Nickel and Ian D Sharp and Emiliano Cortés and Stefan A Maier and Yi Li}, url = {http://dx.doi.org/10.1039/D0NH00461H}, doi = {10.1039/D0NH00461H}, year = {2020}, date = {2020-01-01}, journal = {Nanoscale Horiz.}, volume = {5}, pages = {1500-1508}, publisher = {The Royal Society of Chemistry}, abstract = {Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump–probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Nanophotonics based on high refractive index dielectrics relies on appreciable contrast between the indices of designed nanostructures and their immediate surrounding, which can be achieved by the growth of thin films on low-index substrates. Here we propose the use of high index amorphous gallium phosphide (a-GaP), fabricated by radio-frequency sputter deposition, on top of a low refractive index glass substrate and thoroughly examine its nanophotonic properties. Spectral ellipsometry of the amorphous material demonstrates the optical properties to be considerably close to crystalline gallium phosphide (c-GaP), with low-loss transparency for wavelengths longer than 650 nm. When nanostructured into nanopatches, the second harmonic (SH) response of an individual a-GaP patch is characterized to be more than two orders of magnitude larger than the as-deposited unstructured film, with an anapole-like resonant behavior. Numerical simulations are in good agreement with the experimental results over a large spectral and geometrical range. Furthermore, by studying individual a-GaP nanopatches through non-degenerate pump–probe spectroscopy with sub-10 fs pulses, we find a more than 5% ultrafast modulation of the reflectivity that is accompanied by a slower decaying free carrier contribution, caused by absorption. Our investigations reveal a potential for a-GaP as an adequate inexpensive and CMOS-compatible material for nonlinear nanophotonic applications as well as for photocatalysis. |
| 488. | Jiang, Xinyu; Kim, Hongwon; Deimel, Peter S; Chen, Wei; Cao, Wei; Yang, Dan; Yin, Shanshan; Schaffrinna, Roy; Allegretti, Francesco; Barth, Johannes V; Schwager, Martina; Tang, Haodong; Wang, Kai; Schwartzkopf, Matthias; Roth, Stephan V; Müller-Buschbaum, Peter: Internal nanoscale architecture and charge carrier dynamics of wide bandgap non-fullerene bulk heterojunction active layers in organic solar cells. In: J. Mater. Chem. A, 8 , pp. 23628-23636, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Jiang2020, title = {Internal nanoscale architecture and charge carrier dynamics of wide bandgap non-fullerene bulk heterojunction active layers in organic solar cells}, author = {Xinyu Jiang and Hongwon Kim and Peter S Deimel and Wei Chen and Wei Cao and Dan Yang and Shanshan Yin and Roy Schaffrinna and Francesco Allegretti and Johannes V Barth and Martina Schwager and Haodong Tang and Kai Wang and Matthias Schwartzkopf and Stephan V Roth and Peter Müller-Buschbaum}, url = {http://dx.doi.org/10.1039/D0TA09671G}, doi = {10.1039/D0TA09671G}, year = {2020}, date = {2020-01-01}, journal = {J. Mater. Chem. A}, volume = {8}, pages = {23628-23636}, publisher = {The Royal Society of Chemistry}, abstract = {Bulk heterojunction (BHJ) organic solar cells have gained increasing attention in the past few years. In this work, active layers of a wide-bandgap polymer donor with benzodithiophene units PBDB-T-2F and a non-fullerene small molecule acceptor IT-M are assembled into photovoltaic devices with different amounts of solvent additive 1,8-diiodooctane (DIO). The influence of DIO on the nanoscale film morphology and crystalline structure as well as the charge carrier dynamics of the active layers are investigated by combining grazing-incidence small-angle X-ray scattering (GISAXS), grazing-incidence wide-angle X-ray scattering (GIWAXS), X-ray reflectivity (XRR), UV-visible (UV-vis) absorption spectroscopy, X-ray photoelectron spectroscopy (XPS), time-resolved photoluminescence (TRPL) and space charge limited current measurements, which are correlated with the corresponding performance of the solar cells. At 0.5 vol% DIO addition, the wide-bandgap non-fullerene organic solar cells show the best performance due to high open-circuit voltage and short-circuit current resulting from an improved charge carrier management due to the optimal inner nanoscale morphology of the active layers in terms of surface enrichment, crystallinity and crystalline orientation.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Bulk heterojunction (BHJ) organic solar cells have gained increasing attention in the past few years. In this work, active layers of a wide-bandgap polymer donor with benzodithiophene units PBDB-T-2F and a non-fullerene small molecule acceptor IT-M are assembled into photovoltaic devices with different amounts of solvent additive 1,8-diiodooctane (DIO). The influence of DIO on the nanoscale film morphology and crystalline structure as well as the charge carrier dynamics of the active layers are investigated by combining grazing-incidence small-angle X-ray scattering (GISAXS), grazing-incidence wide-angle X-ray scattering (GIWAXS), X-ray reflectivity (XRR), UV-visible (UV-vis) absorption spectroscopy, X-ray photoelectron spectroscopy (XPS), time-resolved photoluminescence (TRPL) and space charge limited current measurements, which are correlated with the corresponding performance of the solar cells. At 0.5 vol% DIO addition, the wide-bandgap non-fullerene organic solar cells show the best performance due to high open-circuit voltage and short-circuit current resulting from an improved charge carrier management due to the optimal inner nanoscale morphology of the active layers in terms of surface enrichment, crystallinity and crystalline orientation. |
| 489. | Mähringer, Andre; Medina, Dana D: Taking stock of stacking. In: Nature Chemistry, 12 (11), pp. 985–987, 2020, ISSN: 1755-4349. (Type: Journal Article | Abstract | Links | BibTeX) @article{Maehringer2020, title = {Taking stock of stacking}, author = {Andre Mähringer and Dana D Medina}, url = {https://doi.org/10.1038/s41557-020-00568-z}, doi = {10.1038/s41557-020-00568-z}, issn = {1755-4349}, year = {2020}, date = {2020-01-01}, journal = {Nature Chemistry}, volume = {12}, number = {11}, pages = {985--987}, abstract = {The manner in which adjacent sheets stack in layered covalent organic frameworks largely influences their material properties, including chemical stability, crystallinity and porosity. The layer stacking of a COF has now been probed locally, showing disorder that is not detected through long-range characterization.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The manner in which adjacent sheets stack in layered covalent organic frameworks largely influences their material properties, including chemical stability, crystallinity and porosity. The layer stacking of a COF has now been probed locally, showing disorder that is not detected through long-range characterization. |
| 490. | Rotter, Julian M; Guntermann, Roman; Auth, Michael; Mähringer, Andre; Sperlich, Andreas; Dyakonov, Vladimir; Medina, Dana D; Bein, Thomas: Highly conducting Wurster-type twisted covalent organic frameworks. In: Chem. Sci., 11 , pp. 12843-12853, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Rotter2020, title = {Highly conducting Wurster-type twisted covalent organic frameworks}, author = {Julian M Rotter and Roman Guntermann and Michael Auth and Andre Mähringer and Andreas Sperlich and Vladimir Dyakonov and Dana D Medina and Thomas Bein}, url = {http://dx.doi.org/10.1039/D0SC03909H}, doi = {10.1039/D0SC03909H}, year = {2020}, date = {2020-01-01}, journal = {Chem. Sci.}, volume = {11}, pages = {12843-12853}, publisher = {The Royal Society of Chemistry}, abstract = {Covalent organic frameworks (COFs) define a versatile structural paradigm combining attractive properties such as crystallinity, porosity, and chemical and structural modularity which are valuable for various applications. For the incorporation of COFs into optoelectronic devices, efficient charge carrier transport and intrinsic conductivity are often essential. Here, we report the synthesis of two imine-linked two-dimensional COFs, WTA and WBDT, featuring a redox-active Wurster-type motif based on the twisted tetragonal N,N,N′,N′-tetraphenyl-1,4-phenylenediamine node. By condensing this unit with either terephthalaldehyde (TA) or benzodithiophene dialdehyde (BDT), COFs featuring a dual-pore kagome-type structure were obtained as highly crystalline materials with large specific surface areas and mesoporosity. In addition, the experimentally determined high conduction band energies of both COFs render them suitable candidates for oxidative doping. The incorporation of a benzodithiophene linear building block into the COF allows for high intrinsic macroscopic conductivity. Both anisotropic and average isotropic electrical conductivities were determined with van der Pauw measurements using oriented films and pressed pellets, respectively. Furthermore, the impact of different dopants such as F4TCNQ, antimony pentachloride and iodine on the conductivities of the resulting doped COFs was studied. By using the strong organic acceptor F4TCNQ, a massive increase of the radical cation density (up to 0.5 radicals per unit cell) and long-term stable electrical conductivity as high as 3.67 S m−1 were achieved for the anisotropic transport in an oriented film, one of the highest for any doped COF to date. Interestingly, no significant differences between isotropic and anisotropic charge transport were found in films and pressed pellets. This work expands the list of possible building nodes for electrically conducting COFs from planar systems to twisted geometries. The achievement of high and stable electrical conductivity paves the way for possible applications of new COFs in organic (opto)electronics.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Covalent organic frameworks (COFs) define a versatile structural paradigm combining attractive properties such as crystallinity, porosity, and chemical and structural modularity which are valuable for various applications. For the incorporation of COFs into optoelectronic devices, efficient charge carrier transport and intrinsic conductivity are often essential. Here, we report the synthesis of two imine-linked two-dimensional COFs, WTA and WBDT, featuring a redox-active Wurster-type motif based on the twisted tetragonal N,N,N′,N′-tetraphenyl-1,4-phenylenediamine node. By condensing this unit with either terephthalaldehyde (TA) or benzodithiophene dialdehyde (BDT), COFs featuring a dual-pore kagome-type structure were obtained as highly crystalline materials with large specific surface areas and mesoporosity. In addition, the experimentally determined high conduction band energies of both COFs render them suitable candidates for oxidative doping. The incorporation of a benzodithiophene linear building block into the COF allows for high intrinsic macroscopic conductivity. Both anisotropic and average isotropic electrical conductivities were determined with van der Pauw measurements using oriented films and pressed pellets, respectively. Furthermore, the impact of different dopants such as F4TCNQ, antimony pentachloride and iodine on the conductivities of the resulting doped COFs was studied. By using the strong organic acceptor F4TCNQ, a massive increase of the radical cation density (up to 0.5 radicals per unit cell) and long-term stable electrical conductivity as high as 3.67 S m−1 were achieved for the anisotropic transport in an oriented film, one of the highest for any doped COF to date. Interestingly, no significant differences between isotropic and anisotropic charge transport were found in films and pressed pellets. This work expands the list of possible building nodes for electrically conducting COFs from planar systems to twisted geometries. The achievement of high and stable electrical conductivity paves the way for possible applications of new COFs in organic (opto)electronics. |
| 491. | Sailer, D; Bornschlegl, A; Kersting, R: Screening within accumulation layers of molecular semiconductors. In: Applied Physics Letters, 117 (8), pp. 083301, 2020. (Type: Journal Article | Links | BibTeX) @article{Sailer2020, title = {Screening within accumulation layers of molecular semiconductors}, author = {D Sailer and A Bornschlegl and R Kersting}, url = {https://doi.org/10.1063/5.0015585}, doi = {10.1063/5.0015585}, year = {2020}, date = {2020-01-01}, journal = {Applied Physics Letters}, volume = {117}, number = {8}, pages = {083301}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 492. | Heyne, Benjamin; Arlt, Kristin; Geßner, André; Richter, Alexander F; Döblinger, Markus; Feldmann, Jochen; Taubert, Andreas; Wedel, Armin: Mixed Mercaptocarboxylic Acid Shells Provide Stable Dispersions of InPZnS/ZnSe/ZnS Multishell Quantum Dots in Aqueous Media. In: Nanomaterials, 10 (9), 2020, ISSN: 2079-4991. (Type: Journal Article | Abstract | Links | BibTeX) @article{Heyne2020, title = {Mixed Mercaptocarboxylic Acid Shells Provide Stable Dispersions of InPZnS/ZnSe/ZnS Multishell Quantum Dots in Aqueous Media}, author = {Benjamin Heyne and Kristin Arlt and André Geßner and Alexander F Richter and Markus Döblinger and Jochen Feldmann and Andreas Taubert and Armin Wedel}, url = {https://www.mdpi.com/2079-4991/10/9/1858}, doi = {10.3390/nano10091858}, issn = {2079-4991}, year = {2020}, date = {2020-01-01}, journal = {Nanomaterials}, volume = {10}, number = {9}, abstract = {Highly luminescent indium phosphide zinc sulfide (InPZnS) quantum dots (QDs), with zinc selenide/zinc sulfide (ZnSe/ZnS) shells, were synthesized. The QDs were modified via a post-synthetic ligand exchange reaction with 3-mercaptopropionic acid (MPA) and 11-mercaptoundecanoic acid (MUA) in different MPA:MUA ratios, making this study the first investigation into the effects of mixed ligand shells on InPZnS QDs. Moreover, this article also describes an optimized method for the correlation of the QD size vs. optical absorption of the QDs. Upon ligand exchange, the QDs can be dispersed in water. Longer ligands (MUA) provide more stable dispersions than short-chain ligands. Thicker ZnSe/ZnS shells provide a better photoluminescence quantum yield (PLQY) and higher emission stability upon ligand exchange. Both the ligand exchange and the optical properties are highly reproducible between different QD batches. Before dialysis, QDs with a ZnS shell thickness of ~4.9 monolayers (ML), stabilized with a mixed MPA:MUA (mixing ratio of 1:10), showed the highest PLQY, at ~45%. After dialysis, QDs with a ZnS shell thickness of ~4.9 ML, stabilized with a mixed MPA:MUA and a ratio of 1:10 and 1:100, showed the highest PLQYs, of ~41%. The dispersions were stable up to 44 days at ambient conditions and in the dark. After 44 days, QDs with a ZnS shell thickness of ~4.9 ML, stabilized with only MUA, showed the highest PLQY, of ~34%.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Highly luminescent indium phosphide zinc sulfide (InPZnS) quantum dots (QDs), with zinc selenide/zinc sulfide (ZnSe/ZnS) shells, were synthesized. The QDs were modified via a post-synthetic ligand exchange reaction with 3-mercaptopropionic acid (MPA) and 11-mercaptoundecanoic acid (MUA) in different MPA:MUA ratios, making this study the first investigation into the effects of mixed ligand shells on InPZnS QDs. Moreover, this article also describes an optimized method for the correlation of the QD size vs. optical absorption of the QDs. Upon ligand exchange, the QDs can be dispersed in water. Longer ligands (MUA) provide more stable dispersions than short-chain ligands. Thicker ZnSe/ZnS shells provide a better photoluminescence quantum yield (PLQY) and higher emission stability upon ligand exchange. Both the ligand exchange and the optical properties are highly reproducible between different QD batches. Before dialysis, QDs with a ZnS shell thickness of ~4.9 monolayers (ML), stabilized with a mixed MPA:MUA (mixing ratio of 1:10), showed the highest PLQY, at ~45%. After dialysis, QDs with a ZnS shell thickness of ~4.9 ML, stabilized with a mixed MPA:MUA and a ratio of 1:10 and 1:100, showed the highest PLQYs, of ~41%. The dispersions were stable up to 44 days at ambient conditions and in the dark. After 44 days, QDs with a ZnS shell thickness of ~4.9 ML, stabilized with only MUA, showed the highest PLQY, of ~34%. |
| 493. | Lang, Arad; Polishchuk, Iryna; Seknazi, Eva; Feldmann, Jochen; Katsman, Alexander; Pokroy, Boaz: Bioinspired Molecular Bridging in a Hybrid Perovskite Leads to Enhanced Stability and Tunable Properties. In: Advanced Functional Materials, 30 (42), pp. 2005136, 2020. (Type: Journal Article | Abstract | Links | BibTeX) @article{Lang2020, title = {Bioinspired Molecular Bridging in a Hybrid Perovskite Leads to Enhanced Stability and Tunable Properties}, author = {Arad Lang and Iryna Polishchuk and Eva Seknazi and Jochen Feldmann and Alexander Katsman and Boaz Pokroy}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202005136}, doi = {https://doi.org/10.1002/adfm.202005136}, year = {2020}, date = {2020-01-01}, journal = {Advanced Functional Materials}, volume = {30}, number = {42}, pages = {2005136}, abstract = {Abstract Hybrid perovskites demonstrate high potential in optoelectronic applications. Their main drawback is their low stability under humid conditions. In this paper, one of nature's strategies is implemented—the incorporation of amino acids into the crystal lattice—in order to improve the stability of methylammonium lead bromide (MAPbBr3) in water, and to tune its structure, as well as its optical and thermal properties. The amino acid lysine, which possesses two NH3+ groups, is incorporated into the hybrid unit cell, by substituting two methylammonium ions and serves as a “molecular bridge”. This incorporation induces a decrease in the lattice parameter of the host, accompanied with an increase in its bandgap and noticeable changes in its morphology. Furthermore, a substantial decrease in the thermal expansion coefficient of MAPbBr3 and a shift of its cubic-to-tetragonal phase transformation temperature are observed. Two different modes of incorporation are identified, which depend on the conditions of crystallization. These modes dictate the level of lysine incorporation and the magnitude of MAPbBr3 bandgap changes. Notably, lysine incorporation strongly increases the perovskite stability in water. This study demonstrates a unique and promising approach to tune the properties and improve the stability of hybrid perovskites via this novel bioinspired route.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Abstract Hybrid perovskites demonstrate high potential in optoelectronic applications. Their main drawback is their low stability under humid conditions. In this paper, one of nature's strategies is implemented—the incorporation of amino acids into the crystal lattice—in order to improve the stability of methylammonium lead bromide (MAPbBr3) in water, and to tune its structure, as well as its optical and thermal properties. The amino acid lysine, which possesses two NH3+ groups, is incorporated into the hybrid unit cell, by substituting two methylammonium ions and serves as a “molecular bridge”. This incorporation induces a decrease in the lattice parameter of the host, accompanied with an increase in its bandgap and noticeable changes in its morphology. Furthermore, a substantial decrease in the thermal expansion coefficient of MAPbBr3 and a shift of its cubic-to-tetragonal phase transformation temperature are observed. Two different modes of incorporation are identified, which depend on the conditions of crystallization. These modes dictate the level of lysine incorporation and the magnitude of MAPbBr3 bandgap changes. Notably, lysine incorporation strongly increases the perovskite stability in water. This study demonstrates a unique and promising approach to tune the properties and improve the stability of hybrid perovskites via this novel bioinspired route. |
| 494. | Föller, Jelena; Friese, Daniel H; Riese, Stefan; Kaminski, Jeremy M; Metz, Simon; Schmidt, David; Würthner, Frank; Lambert, Christoph; Marian, Christel M: On the photophysical properties of IrIII, PtII, and PdII (phenylpyrazole) (phenyldipyrrin) complexes. In: Physical Chemistry Chemical Physics, 22 (6), pp. 3217–3233, 2020. (Type: Journal Article | Links | BibTeX) @article{Foeller2020b, title = {On the photophysical properties of IrIII, PtII, and PdII (phenylpyrazole) (phenyldipyrrin) complexes}, author = {Jelena Föller and Daniel H Friese and Stefan Riese and Jeremy M Kaminski and Simon Metz and David Schmidt and Frank Würthner and Christoph Lambert and Christel M Marian}, doi = {10.1039/c9cp05603c}, year = {2020}, date = {2020-01-01}, journal = {Physical Chemistry Chemical Physics}, volume = {22}, number = {6}, pages = {3217--3233}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 495. | Menekse, Kaan; Chen, Pengzhong; Mahlmeister, Bernhard; Anhalt, Olga; Kudzus, Astrid; Stolte, Matthias; Würthner, Frank: Quinoidal dicyanomethylene-endcapped cyclopentadithiophenes as vacuum-processable n-type semiconductors. In: Journal of Materials Chemistry C, 8 (43), pp. 15303–15311, 2020. (Type: Journal Article | Links | BibTeX) @article{Menekse2020b, title = {Quinoidal dicyanomethylene-endcapped cyclopentadithiophenes as vacuum-processable n-type semiconductors}, author = {Kaan Menekse and Pengzhong Chen and Bernhard Mahlmeister and Olga Anhalt and Astrid Kudzus and Matthias Stolte and Frank Würthner}, doi = {10.1039/d0tc02988b}, year = {2020}, date = {2020-01-01}, journal = {Journal of Materials Chemistry C}, volume = {8}, number = {43}, pages = {15303--15311}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 496. | Leonhardt, Viktoria; Fimmel, Stefanie; Krause, Ana-Maria; Beuerle, Florian: A covalent organic cage compound acting as a supramolecular shadow mask for the regioselective functionalization of C60. In: Chemical Science, 11 (32), pp. 8409–8415, 2020. (Type: Journal Article | Links | BibTeX) @article{Leonhardt2020, title = {A covalent organic cage compound acting as a supramolecular shadow mask for the regioselective functionalization of C60}, author = {Viktoria Leonhardt and Stefanie Fimmel and Ana-Maria Krause and Florian Beuerle}, doi = {10.1039/d0sc03131c}, year = {2020}, date = {2020-01-01}, journal = {Chemical Science}, volume = {11}, number = {32}, pages = {8409--8415}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 497. | Michail, Evripidis; Schreck, Maximilian H; Holzapfel, Marco; Lambert, Christoph: Exciton coupling effects on the two-photon absorption of squaraine homodimers with varying bridge units. In: Physical Chemistry Chemical Physics, 22 (33), pp. 18340–18350, 2020. (Type: Journal Article | Links | BibTeX) @article{Michail2020, title = {Exciton coupling effects on the two-photon absorption of squaraine homodimers with varying bridge units}, author = {Evripidis Michail and Maximilian H Schreck and Marco Holzapfel and Christoph Lambert}, doi = {10.1039/d0cp03410j}, year = {2020}, date = {2020-01-01}, journal = {Physical Chemistry Chemical Physics}, volume = {22}, number = {33}, pages = {18340--18350}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 498. | Zhukov, Ivan; Fishman, Natalya; Kiryutin, Alexey; Lukzen, Nikita; Panov, Mikhail; Steiner, Ulrich; Vieth, Hans-Martin; Schäfer, Julian; Lambert, Christoph; Yurkovskaya, Alexandra: Positive electronic exchange interaction and predominance of minor triplet channel in CIDNP formation in short lived charge separated states of D-X-A dyads. In: The Journal of Chemical Physics, 152 (1), pp. 014203, 2020. (Type: Journal Article | Links | BibTeX) @article{Zhukov2020, title = {Positive electronic exchange interaction and predominance of minor triplet channel in CIDNP formation in short lived charge separated states of D-X-A dyads}, author = {Ivan Zhukov and Natalya Fishman and Alexey Kiryutin and Nikita Lukzen and Mikhail Panov and Ulrich Steiner and Hans-Martin Vieth and Julian Schäfer and Christoph Lambert and Alexandra Yurkovskaya}, doi = {10.1063/1.5131817}, year = {2020}, date = {2020-01-01}, journal = {The Journal of Chemical Physics}, volume = {152}, number = {1}, pages = {014203}, publisher = {AIP Publishing}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 499. | Höcker, Julian; Ozcan, Mehmet; Hammer, Sebastian; Fischer, Mathias; Bichler, Benedikt; Armer, Melina; Rieder, Philipp; Drach, Volker; Pflaum, Jens; Nickel, Bert; Dyakonov, Vladimir: Seed crystal free growth of high-quality double cation – double halide perovskite single crystals for optoelectronic applications. In: Journal of Materials Chemistry C, 8 (24), pp. 8275–8283, 2020. (Type: Journal Article | Links | BibTeX) @article{Hoecker2020, title = {Seed crystal free growth of high-quality double cation – double halide perovskite single crystals for optoelectronic applications}, author = {Julian Höcker and Mehmet Ozcan and Sebastian Hammer and Mathias Fischer and Benedikt Bichler and Melina Armer and Philipp Rieder and Volker Drach and Jens Pflaum and Bert Nickel and Vladimir Dyakonov}, doi = {10.1039/d0tc01617a}, year = {2020}, date = {2020-01-01}, journal = {Journal of Materials Chemistry C}, volume = {8}, number = {24}, pages = {8275--8283}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
| 500. | Lindorf, M; Mazzio, K A; Pflaum, J; Nielsch, K; Brütting, W; Albrecht, M: Organic-based thermoelectrics. In: Journal of Materials Chemistry A, 8 (16), pp. 7495–7507, 2020. (Type: Journal Article | Links | BibTeX) @article{Lindorf2020, title = {Organic-based thermoelectrics}, author = {M Lindorf and K A Mazzio and J Pflaum and K Nielsch and W Brütting and M Albrecht}, doi = {10.1039/c9ta11717b}, year = {2020}, date = {2020-01-01}, journal = {Journal of Materials Chemistry A}, volume = {8}, number = {16}, pages = {7495--7507}, publisher = {Royal Society of Chemistry (RSC)}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
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Zhang, Hong; Azimi, Hamed; Hou, Yi; Ameri, Tayebeh; Przybilla, Thomas; Spiecker, Erdmann; Kraft, Mario; Scherf, Ullrich; Brabec, Christoph J Improved High-Efficiency Perovskite Planar Heterojunction Solar Cells via Incorporation of a Polyelectrolyte Interlayer Journal Article CHEMISTRY OF MATERIALS, 26 (18), pp. 5190-5193, 2014, ISSN: 0897-4756. @article{ISI:000342184900004, title = {Improved High-Efficiency Perovskite Planar Heterojunction Solar Cells via Incorporation of a Polyelectrolyte Interlayer}, author = {Hong Zhang and Hamed Azimi and Yi Hou and Tayebeh Ameri and Thomas Przybilla and Erdmann Spiecker and Mario Kraft and Ullrich Scherf and Christoph J Brabec}, doi = {10.1021/cm502864s}, issn = {0897-4756}, year = {2014}, date = {2014-09-01}, journal = {CHEMISTRY OF MATERIALS}, volume = {26}, number = {18}, pages = {5190-5193}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Roesch, Philipp; Nitsch, Joern; Lutz, Martin; Wiecko, Jelena; Steffen, Andreas; Mueller, Christian Synthesis and Photoluminescence Properties of an Unprecedented Phosphinine-Cu4Br4 Cluster Journal Article INORGANIC CHEMISTRY, 53 (18), pp. 9855-9859, 2014, ISSN: 0020-1669. @article{ISI:000341747900043, title = {Synthesis and Photoluminescence Properties of an Unprecedented Phosphinine-Cu4Br4 Cluster}, author = {Philipp Roesch and Joern Nitsch and Martin Lutz and Jelena Wiecko and Andreas Steffen and Christian Mueller}, doi = {10.1021/ic5014472}, issn = {0020-1669}, year = {2014}, date = {2014-09-01}, journal = {INORGANIC CHEMISTRY}, volume = {53}, number = {18}, pages = {9855-9859}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Liu, Yujing; Peters, Kristina; Mandlmeier, Benjamin; Mueller, Alexander; Fominykh, Ksenia; Rathousky, Jiri; Scheu, Christina; Fattakhova-Rohlfing, Dina Macroporous indium tin oxide electrode layers as conducting substrates for immobilization of bulky electroactive guests Journal Article ELECTROCHIMICA ACTA, 140 (SI), pp. 108-115, 2014, ISSN: 0013-4686. @article{ISI:000342528600016, title = {Macroporous indium tin oxide electrode layers as conducting substrates for immobilization of bulky electroactive guests}, author = {Yujing Liu and Kristina Peters and Benjamin Mandlmeier and Alexander Mueller and Ksenia Fominykh and Jiri Rathousky and Christina Scheu and Dina Fattakhova-Rohlfing}, doi = {10.1016/j.electacta.2014.05.046}, issn = {0013-4686}, year = {2014}, date = {2014-09-01}, journal = {ELECTROCHIMICA ACTA}, volume = {140}, number = {SI}, pages = {108-115}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Haedler, Andreas T; Beyer, Sebastian R; Hammer, Natalie; Hildner, Richard; Kivala, Milan; Koehler, Juergen; Schmidt, Hans-Werner Synthesis and Photophysical Properties of Multichromophoric Carbonyl-Bridged Triarylamines Journal Article CHEMISTRY-A EUROPEAN JOURNAL, 20 (37), pp. 11708-11718, 2014, ISSN: 0947-6539. @article{ISI:000341630500018, title = {Synthesis and Photophysical Properties of Multichromophoric Carbonyl-Bridged Triarylamines}, author = {Andreas T Haedler and Sebastian R Beyer and Natalie Hammer and Richard Hildner and Milan Kivala and Juergen Koehler and Hans-Werner Schmidt}, doi = {10.1002/chem.201403667}, issn = {0947-6539}, year = {2014}, date = {2014-09-01}, journal = {CHEMISTRY-A EUROPEAN JOURNAL}, volume = {20}, number = {37}, pages = {11708-11718}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Tan, Zhi-Kuang; Moghaddam, Reza Saberi; Lai, May Ling; Docampo, Pablo; Higler, Ruben; Deschler, Felix; Price, Michael; Sadhanala, Aditya; Pazos, Luis M; Credgington, Dan; Hanusch, Fabian; Bein, Thomas; Snaith, Henry J; Friend, Richard H Bright light-emitting diodes based on organometal halide perovskite Journal Article NATURE NANOTECHNOLOGY, 9 (9), pp. 687-692, 2014, ISSN: 1748-3387. @article{ISI:000341814400011, title = {Bright light-emitting diodes based on organometal halide perovskite}, author = {Zhi-Kuang Tan and Reza Saberi Moghaddam and May Ling Lai and Pablo Docampo and Ruben Higler and Felix Deschler and Michael Price and Aditya Sadhanala and Luis M Pazos and Dan Credgington and Fabian Hanusch and Thomas Bein and Henry J Snaith and Richard H Friend}, doi = {10.1038/NNANO.2014.149}, issn = {1748-3387}, year = {2014}, date = {2014-09-01}, journal = {NATURE NANOTECHNOLOGY}, volume = {9}, number = {9}, pages = {687-692}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Heumueller, Thomas; Mateker, William R; Sachs-Quintana, I T; Vandewal, Koen; Bartelt, Jonathan A; Burke, Timothy M; Ameri, Tayebeh; Brabec, Christoph J; McGehee, Michael D Reducing burn-in voltage loss in polymer solar cells by increasing the polymer crystallinity Journal Article ENERGY & ENVIRONMENTAL SCIENCE, 7 (9), pp. 2974-2980, 2014, ISSN: 1754-5692. @article{ISI:000340450100015, title = {Reducing burn-in voltage loss in polymer solar cells by increasing the polymer crystallinity}, author = {Thomas Heumueller and William R Mateker and I T Sachs-Quintana and Koen Vandewal and Jonathan A Bartelt and Timothy M Burke and Tayebeh Ameri and Christoph J Brabec and Michael D McGehee}, doi = {10.1039/c4ee01842g}, issn = {1754-5692}, year = {2014}, date = {2014-09-01}, journal = {ENERGY & ENVIRONMENTAL SCIENCE}, volume = {7}, number = {9}, pages = {2974-2980}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Metwalli, E; Krisch, I; Markovits, I; Rawolle, M; Ruderer, M A; Guo, S; Wyrzgol, S; Jentys, A; Perlich, J; Lercher, J A; Mueller-Buschbaum, P Polymer-Coated PtCo Nanoparticles Deposited on Diblock Copolymer Templates: Chemical Selectivity versus Topographical Effects Journal Article CHEMPHYSCHEM, 15 (11), pp. 2236-2239, 2014, ISSN: 1439-4235. @article{ISI:000340175800006b, title = {Polymer-Coated PtCo Nanoparticles Deposited on Diblock Copolymer Templates: Chemical Selectivity versus Topographical Effects}, author = {E Metwalli and I Krisch and I Markovits and M Rawolle and M A Ruderer and S Guo and S Wyrzgol and A Jentys and J Perlich and J A Lercher and P Mueller-Buschbaum}, doi = {10.1002/cphc.201402047}, issn = {1439-4235}, year = {2014}, date = {2014-08-01}, journal = {CHEMPHYSCHEM}, volume = {15}, number = {11}, pages = {2236-2239}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Baumann, A; Tvingstedt, K; Heiber, M C; Vaeth, S; Momblona, C; Bolink, H J; Dyakonov, V Persistent photovoltage in methylammonium lead iodide perovskite solar cells Journal Article APL MATERIALS, 2 (8), 2014, ISSN: 2166-532X. @article{ISI:000342567700003b, title = {Persistent photovoltage in methylammonium lead iodide perovskite solar cells}, author = {A Baumann and K Tvingstedt and M C Heiber and S Vaeth and C Momblona and H J Bolink and V Dyakonov}, doi = {10.1063/1.4885255}, issn = {2166-532X}, year = {2014}, date = {2014-08-01}, journal = {APL MATERIALS}, volume = {2}, number = {8}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Docampo, Pablo; Hanusch, Fabian C; Giesbrecht, Nadja; Angloher, Philipp; Ivanova, Alesja; Bein, Thomas Influence of the orientation of methylammonium lead iodide perovskite crystals on solar cell performance Journal Article APL MATERIALS, 2 (8), 2014, ISSN: 2166-532X. @article{ISI:000342567700010b, title = {Influence of the orientation of methylammonium lead iodide perovskite crystals on solar cell performance}, author = {Pablo Docampo and Fabian C Hanusch and Nadja Giesbrecht and Philipp Angloher and Alesja Ivanova and Thomas Bein}, doi = {10.1063/1.4890244}, issn = {2166-532X}, year = {2014}, date = {2014-08-01}, journal = {APL MATERIALS}, volume = {2}, number = {8}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Wolf, N; Stubhan, T; Manara, J; Dyakonov, V; Brabec, C J Stabilization of aluminum doped zinc oxide nanoparticle suspensions and their application in organic solar cells Journal Article THIN SOLID FILMS, 564 , pp. 213-217, 2014, ISSN: 0040-6090. @article{ISI:000340852200028b, title = {Stabilization of aluminum doped zinc oxide nanoparticle suspensions and their application in organic solar cells}, author = {N Wolf and T Stubhan and J Manara and V Dyakonov and C J Brabec}, doi = {10.1016/j.tsf.2014.06.008}, issn = {0040-6090}, year = {2014}, date = {2014-08-01}, journal = {THIN SOLID FILMS}, volume = {564}, pages = {213-217}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
de Queiroz, Thiago B; Kuemmel, Stephan Charge-transfer excitations in low-gap systems under the influence of solvation and conformational disorder: Exploring range-separation tuning Journal Article JOURNAL OF CHEMICAL PHYSICS, 141 (8), 2014, ISSN: 0021-9606. @article{ISI:000341987600016, title = {Charge-transfer excitations in low-gap systems under the influence of solvation and conformational disorder: Exploring range-separation tuning}, author = {Thiago B de Queiroz and Stephan Kuemmel}, doi = {10.1063/1.4892937}, issn = {0021-9606}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF CHEMICAL PHYSICS}, volume = {141}, number = {8}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Hanusch, Fabian C; Wiesenmayer, Erwin; Mankel, Eric; Binek, Andreas; Angloher, Philipp; Fraunhofer, Christina; Giesbrecht, Nadja; Feckl, Johann M; Jaegermann, Wolfram; Johrendt, Dirk; Bein, Thomas; Docampo, Pablo Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide Journal Article JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 5 (16), pp. 2791-2795, 2014, ISSN: 1948-7185. @article{ISI:000340807100005, title = {Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide}, author = {Fabian C Hanusch and Erwin Wiesenmayer and Eric Mankel and Andreas Binek and Philipp Angloher and Christina Fraunhofer and Nadja Giesbrecht and Johann M Feckl and Wolfram Jaegermann and Dirk Johrendt and Thomas Bein and Pablo Docampo}, doi = {10.1021/jz501237m}, issn = {1948-7185}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF PHYSICAL CHEMISTRY LETTERS}, volume = {5}, number = {16}, pages = {2791-2795}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Tvingstedt, Kristofer; Malinkiewicz, Olga; Baumann, Andreas; Deibel, Carsten; Snaith, Henry J; Dyakonov, Vladimir; Bolink, Henk J Radiative efficiency of lead iodide based perovskite solar cells Journal Article SCIENTIFIC REPORTS, 4 , 2014, ISSN: 2045-2322. @article{ISI:000340675000015, title = {Radiative efficiency of lead iodide based perovskite solar cells}, author = {Kristofer Tvingstedt and Olga Malinkiewicz and Andreas Baumann and Carsten Deibel and Henry J Snaith and Vladimir Dyakonov and Henk J Bolink}, doi = {10.1038/srep06071}, issn = {2045-2322}, year = {2014}, date = {2014-08-01}, journal = {SCIENTIFIC REPORTS}, volume = {4}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ju, James (Zi-Jian); Loitsch, Bernhard; Stettner, Thomas; Schuster, Fabian; Stutzmann, Martin; Koblmueller, Gregor Trade-off between morphology, extended defects, and compositional fluctuation induced carrier localization in high In-content InGaN films Journal Article JOURNAL OF APPLIED PHYSICS, 116 (5), 2014, ISSN: 0021-8979. @article{ISI:000341178900009, title = {Trade-off between morphology, extended defects, and compositional fluctuation induced carrier localization in high In-content InGaN films}, author = {James (Zi-Jian) Ju and Bernhard Loitsch and Thomas Stettner and Fabian Schuster and Martin Stutzmann and Gregor Koblmueller}, doi = {10.1063/1.4891990}, issn = {0021-8979}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF APPLIED PHYSICS}, volume = {116}, number = {5}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Schuster, Fabian; Weiszer, Saskia; Hetzl, Martin; Winnerl, Andrea; Garrido, Jose A; Stutzmann, Martin Influence of substrate material, orientation, and surface termination on GaN nanowire growth Journal Article JOURNAL OF APPLIED PHYSICS, 116 (5), 2014, ISSN: 0021-8979. @article{ISI:000341178900054, title = {Influence of substrate material, orientation, and surface termination on GaN nanowire growth}, author = {Fabian Schuster and Saskia Weiszer and Martin Hetzl and Andrea Winnerl and Jose A Garrido and Martin Stutzmann}, doi = {10.1063/1.4892113}, issn = {0021-8979}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF APPLIED PHYSICS}, volume = {116}, number = {5}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Voelker, Sebastian F; Schmiedel, Alexander; Holzapfel, Marco; Renziehausen, Klaus; Engel, Volker; Lambert, Christoph Singlet-Singlet Exciton Annihilation in an Exciton-Coupled Squaraine-Squaraine Copolymer: A Model toward Hetero-J-Aggregates Journal Article JOURNAL OF PHYSICAL CHEMISTRY C, 118 (31), pp. 17467-17482, 2014, ISSN: 1932-7447. @article{ISI:000340222300033, title = {Singlet-Singlet Exciton Annihilation in an Exciton-Coupled Squaraine-Squaraine Copolymer: A Model toward Hetero-J-Aggregates}, author = {Sebastian F Voelker and Alexander Schmiedel and Marco Holzapfel and Klaus Renziehausen and Volker Engel and Christoph Lambert}, doi = {10.1021/jp5055809}, issn = {1932-7447}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF PHYSICAL CHEMISTRY C}, volume = {118}, number = {31}, pages = {17467-17482}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Panzer, Fabian; Baessler, Heinz; Lohwasser, Ruth; Thelakkat, Mukundan; Koehler, Anna The Impact of Polydispersity and Molecular Weight on the Order-Disorder Transition in Poly(3-hexylthiophene) Journal Article JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 5 (15), pp. 2742-2747, 2014, ISSN: 1948-7185. @article{ISI:000340222200042, title = {The Impact of Polydispersity and Molecular Weight on the Order-Disorder Transition in Poly(3-hexylthiophene)}, author = {Fabian Panzer and Heinz Baessler and Ruth Lohwasser and Mukundan Thelakkat and Anna Koehler}, doi = {10.1021/jz5009938}, issn = {1948-7185}, year = {2014}, date = {2014-08-01}, journal = {JOURNAL OF PHYSICAL CHEMISTRY LETTERS}, volume = {5}, number = {15}, pages = {2742-2747}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Li, Ning; Baran, Derya; Spyropoulos, George D; Zhang, Hong; Berny, Stephane; Turbiez, Mathieu; Ameri, Tayebeh; Krebs, Frederik C; Brabec, Christoph J Environmentally Printing Efficient Organic Tandem Solar Cells with High Fill Factors: A Guideline Towards 20% Power Conversion Efficiency Journal Article ADVANCED ENERGY MATERIALS, 4 (11), 2014, ISSN: 1614-6832. @article{ISI:000340526900017, title = {Environmentally Printing Efficient Organic Tandem Solar Cells with High Fill Factors: A Guideline Towards 20% Power Conversion Efficiency}, author = {Ning Li and Derya Baran and George D Spyropoulos and Hong Zhang and Stephane Berny and Mathieu Turbiez and Tayebeh Ameri and Frederik C Krebs and Christoph J Brabec}, doi = {10.1002/aenm.201400084}, issn = {1614-6832}, year = {2014}, date = {2014-08-01}, journal = {ADVANCED ENERGY MATERIALS}, volume = {4}, number = {11}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Waterloo, Andreas R; Sale, Anna-Chiara; Lehnherr, Dan; Hampel, Frank; Tykwinski, Rik R Aryl substitution of pentacenes Journal Article BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, 10 , pp. 1692-1705, 2014, ISSN: 1860-5397. @article{ISI:000339672100001b, title = {Aryl substitution of pentacenes}, author = {Andreas R Waterloo and Anna-Chiara Sale and Dan Lehnherr and Frank Hampel and Rik R Tykwinski}, doi = {10.3762/bjoc.10.178}, issn = {1860-5397}, year = {2014}, date = {2014-07-01}, journal = {BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY}, volume = {10}, pages = {1692-1705}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Falco, Aniello; Cina, Lucio; Scarpa, Giuseppe; Lugli, Paolo; Abdellah, Alaa Fully-Sprayed and Flexible Organic Photodiodes with Transparent Carbon Nanotube Electrodes Journal Article ACS APPLIED MATERIALS & INTERFACES, 6 (13), pp. 10593-10601, 2014, ISSN: 1944-8244. @article{ISI:000338979900080b, title = {Fully-Sprayed and Flexible Organic Photodiodes with Transparent Carbon Nanotube Electrodes}, author = {Aniello Falco and Lucio Cina and Giuseppe Scarpa and Paolo Lugli and Alaa Abdellah}, doi = {10.1021/am5022123}, issn = {1944-8244}, year = {2014}, date = {2014-07-01}, journal = {ACS APPLIED MATERIALS & INTERFACES}, volume = {6}, number = {13}, pages = {10593-10601}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Steffen, Andreas; Costuas, Karine; Boucekkine, Abdou; Thibault, Marie-Helene; Beeby, Andrew; Batsanov, Andrei S; Charaf-Eddin, Azzam; Jacquemin, Denis; Halet, Jean-Francois; Marder, Todd B Fluorescence in Rhoda- and Iridacyclopentadienes Neglecting the Spin-Orbit Coupling of the Heavy Atom: The Ligand Dominates Journal Article INORGANIC CHEMISTRY, 53 (13), pp. 7055-7069, 2014, ISSN: 0020-1669. @article{ISI:000338748100074b, title = {Fluorescence in Rhoda- and Iridacyclopentadienes Neglecting the Spin-Orbit Coupling of the Heavy Atom: The Ligand Dominates}, author = {Andreas Steffen and Karine Costuas and Abdou Boucekkine and Marie-Helene Thibault and Andrew Beeby and Andrei S Batsanov and Azzam Charaf-Eddin and Denis Jacquemin and Jean-Francois Halet and Todd B Marder}, doi = {10.1021/ic501115k}, issn = {0020-1669}, year = {2014}, date = {2014-07-01}, journal = {INORGANIC CHEMISTRY}, volume = {53}, number = {13}, pages = {7055-7069}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Berger, Daniel; Logsdail, Andrew J; Oberhofer, Harald; Farrow, Matthew R; Catlow, Richard C A; Sherwood, Paul; Sokol, Alexey A; Blum, Volker; Reuter, Karsten Embedded-cluster calculations in a numeric atomic orbital density-functional theory framework Journal Article JOURNAL OF CHEMICAL PHYSICS, 141 (2), 2014, ISSN: 0021-9606. @article{ISI:000340269200006b, title = {Embedded-cluster calculations in a numeric atomic orbital density-functional theory framework}, author = {Daniel Berger and Andrew J Logsdail and Harald Oberhofer and Matthew R Farrow and Richard C A Catlow and Paul Sherwood and Alexey A Sokol and Volker Blum and Karsten Reuter}, doi = {10.1063/1.4885816}, issn = {0021-9606}, year = {2014}, date = {2014-07-01}, journal = {JOURNAL OF CHEMICAL PHYSICS}, volume = {141}, number = {2}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Hennemann, Matthias; Clark, Timothy EMPIRE: a highly parallel semiempirical molecular orbital program: 1: self-consistent field calculations Journal Article JOURNAL OF MOLECULAR MODELING, 20 (7), 2014, ISSN: 1610-2940. @article{ISI:000339884800018b, title = {EMPIRE: a highly parallel semiempirical molecular orbital program: 1: self-consistent field calculations}, author = {Matthias Hennemann and Timothy Clark}, doi = {10.1007/s00894-014-2331-4}, issn = {1610-2940}, year = {2014}, date = {2014-07-01}, journal = {JOURNAL OF MOLECULAR MODELING}, volume = {20}, number = {7}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Gharib, Bhasem; Hirsch, Andreas Synthesis and Characterization of New Ferrocene-Containing Ionic Liquids Journal Article EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (19), pp. 4123-4136, 2014, ISSN: 1434-193X. @article{ISI:000338018400021b, title = {Synthesis and Characterization of New Ferrocene-Containing Ionic Liquids}, author = {Bhasem Gharib and Andreas Hirsch}, doi = {10.1002/ejoc.201400061}, issn = {1434-193X}, year = {2014}, date = {2014-07-01}, journal = {EUROPEAN JOURNAL OF ORGANIC CHEMISTRY}, number = {19}, pages = {4123-4136}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Baglia, Regina A; Duerr, Maximilian; Ivanovic-Burmazovic, Ivana; Goldberg, David P Activation of a High-Valent Manganese-Oxo Complex by a Nonmetallic Lewis Acid Journal Article INORGANIC CHEMISTRY, 53 (12), pp. 5893-5895, 2014, ISSN: 0020-1669. @article{ISI:000337557800007b, title = {Activation of a High-Valent Manganese-Oxo Complex by a Nonmetallic Lewis Acid}, author = {Regina A Baglia and Maximilian Duerr and Ivana Ivanovic-Burmazovic and David P Goldberg}, doi = {10.1021/ic500901y}, issn = {0020-1669}, year = {2014}, date = {2014-06-01}, journal = {INORGANIC CHEMISTRY}, volume = {53}, number = {12}, pages = {5893-5895}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Schuster, Fabian; Hetzl, Martin; Magen, Cesar; Arbiol, Jordi; Garrido, Jose A; Stutzmann, Martin Heteroepitaxial ZnO films on diamond: Optoelectronic properties and the role of interface polarity Journal Article JOURNAL OF APPLIED PHYSICS, 115 (21), 2014, ISSN: 0021-8979. @article{ISI:000337161600014b, title = {Heteroepitaxial ZnO films on diamond: Optoelectronic properties and the role of interface polarity}, author = {Fabian Schuster and Martin Hetzl and Cesar Magen and Jordi Arbiol and Jose A Garrido and Martin Stutzmann}, doi = {10.1063/1.4880161}, issn = {0021-8979}, year = {2014}, date = {2014-06-01}, journal = {JOURNAL OF APPLIED PHYSICS}, volume = {115}, number = {21}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Winkler, Stefanie; Frisch, Johannes; Amsalem, Patrick; Krause, Stefan; Timpel, Melanie; Stolte, Matthias; Wuerthner, Frank; Koch, Norbert Impact of Molecular Dipole Moments on Fermi Level Pinning in Thin Films Journal Article JOURNAL OF PHYSICAL CHEMISTRY C, 118 (22), pp. 11731-11737, 2014, ISSN: 1932-7447. @article{ISI:000337013400026b, title = {Impact of Molecular Dipole Moments on Fermi Level Pinning in Thin Films}, author = {Stefanie Winkler and Johannes Frisch and Patrick Amsalem and Stefan Krause and Melanie Timpel and Matthias Stolte and Frank Wuerthner and Norbert Koch}, doi = {10.1021/jp5021615}, issn = {1932-7447}, year = {2014}, date = {2014-06-01}, journal = {JOURNAL OF PHYSICAL CHEMISTRY C}, volume = {118}, number = {22}, pages = {11731-11737}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Westermeier, Christian; Cernescu, Adrian; Amarie, Sergiu; Liewald, Clemens; Keilmann, Fritz; Nickel, Bert Sub-micron phase coexistence in small-molecule organic thin films revealed by infrared nano-imaging Journal Article NATURE COMMUNICATIONS, 5 , 2014, ISSN: 2041-1723. @article{ISI:000338838200015b, title = {Sub-micron phase coexistence in small-molecule organic thin films revealed by infrared nano-imaging}, author = {Christian Westermeier and Adrian Cernescu and Sergiu Amarie and Clemens Liewald and Fritz Keilmann and Bert Nickel}, doi = {10.1038/ncomms5101}, issn = {2041-1723}, year = {2014}, date = {2014-06-01}, journal = {NATURE COMMUNICATIONS}, volume = {5}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Fominykh, Ksenia; Feckl, Johann M; Sicklinger, Johannes; Doeblinger, Markus; Boecklein, Sebastian; Ziegler, Juergen; Peter, Laurence; Rathousky, Jiri; Scheidt, Ernst-Wilhelm; Bein, Thomas; Fattakhova-Rohlfing, Dina Ultrasmall Dispersible Crystalline Nickel Oxide Nanoparticles as High-Performance Catalysts for Electrochemical Water Splitting Journal Article ADVANCED FUNCTIONAL MATERIALS, 24 (21), pp. 3123-3129, 2014, ISSN: 1616-301X. @article{ISI:000337489400007b, title = {Ultrasmall Dispersible Crystalline Nickel Oxide Nanoparticles as High-Performance Catalysts for Electrochemical Water Splitting}, author = {Ksenia Fominykh and Johann M Feckl and Johannes Sicklinger and Markus Doeblinger and Sebastian Boecklein and Juergen Ziegler and Laurence Peter and Jiri Rathousky and Ernst-Wilhelm Scheidt and Thomas Bein and Dina Fattakhova-Rohlfing}, doi = {10.1002/adfm.201303600}, issn = {1616-301X}, year = {2014}, date = {2014-06-01}, journal = {ADVANCED FUNCTIONAL MATERIALS}, volume = {24}, number = {21}, pages = {3123-3129}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Grob, Stefan; Gruber, Mark; Bartynski, Andrew N; Hoermann, Ulrich; Linderl, Theresa; Thompson, Mark E; Bruetting, Wolfgang Amorphous vs crystalline exciton blocking layers at the anode interface in planar and planar-mixed heterojunction organic solar cells Journal Article APPLIED PHYSICS LETTERS, 104 (21), 2014, ISSN: 0003-6951. @article{ISI:000337143000051b, title = {Amorphous vs crystalline exciton blocking layers at the anode interface in planar and planar-mixed heterojunction organic solar cells}, author = {Stefan Grob and Mark Gruber and Andrew N Bartynski and Ulrich Hoermann and Theresa Linderl and Mark E Thompson and Wolfgang Bruetting}, doi = {10.1063/1.4879839}, issn = {0003-6951}, year = {2014}, date = {2014-05-01}, journal = {APPLIED PHYSICS LETTERS}, volume = {104}, number = {21}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Topczak, Anna K; Roller, Tobias; Engels, Bernd; Bruetting, Wolfgang; Pflaum, Jens Nonthermally activated exciton transport in crystalline organic semiconductor thin films Journal Article PHYSICAL REVIEW B, 89 (20), 2014, ISSN: 1098-0121. @article{ISI:000339562100003b, title = {Nonthermally activated exciton transport in crystalline organic semiconductor thin films}, author = {Anna K Topczak and Tobias Roller and Bernd Engels and Wolfgang Bruetting and Jens Pflaum}, doi = {10.1103/PhysRevB.89.201203}, issn = {1098-0121}, year = {2014}, date = {2014-05-01}, journal = {PHYSICAL REVIEW B}, volume = {89}, number = {20}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Schuster, Fabian; Laumer, Bernhard; Zamani, Reza R; Magen, Cesar; Morante, Joan Ramon; Arbiol, Jordi; Stutzmann, Martin p-GaN/n-ZnO Heterojunction Nanowires: Optoelectronic Properties and the Role of Interface Polarity Journal Article ACS NANO, 8 (5), pp. 4376-4384, 2014, ISSN: 1936-0851. @article{ISI:000336640600028b, title = {p-GaN/n-ZnO Heterojunction Nanowires: Optoelectronic Properties and the Role of Interface Polarity}, author = {Fabian Schuster and Bernhard Laumer and Reza R Zamani and Cesar Magen and Joan Ramon Morante and Jordi Arbiol and Martin Stutzmann}, doi = {10.1021/nn406134e}, issn = {1936-0851}, year = {2014}, date = {2014-05-01}, journal = {ACS NANO}, volume = {8}, number = {5}, pages = {4376-4384}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Poluektov, Oleg G; Niklas, Jens; Mardis, Kristy L; Beaupre, Serge; Leclerc, Mario; Villegas, Carmen; Erten-Ela, Sule; Delgado, Juan L; Martin, Nazario; Sperlich, Andreas; Dyakonov, Vladimir Electronic Structure of Fullerene Heterodimer in Bulk-Heterojunction Blends Journal Article ADVANCED ENERGY MATERIALS, 4 (7), 2014, ISSN: 1614-6832. @article{ISI:000336503800026b, title = {Electronic Structure of Fullerene Heterodimer in Bulk-Heterojunction Blends}, author = {Oleg G Poluektov and Jens Niklas and Kristy L Mardis and Serge Beaupre and Mario Leclerc and Carmen Villegas and Sule Erten-Ela and Juan L Delgado and Nazario Martin and Andreas Sperlich and Vladimir Dyakonov}, doi = {10.1002/aenm.201301517}, issn = {1614-6832}, year = {2014}, date = {2014-05-01}, journal = {ADVANCED ENERGY MATERIALS}, volume = {4}, number = {7}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Min, Jie; Luponosov, Yuriy N; Gerl, Andreas; Polinskaya, Marina S; Peregudova, Svetlana M; Dmitryakov, Petr V; Bakirov, Artem V; Shcherbina, Maxim A; Chvalun, Sergei N; Grigorian, Souren; Kaush-Busies, Nina; Ponomarenko, Sergei A; Ameri, Tayebeh; Brabec, Christoph J Alkyl Chain Engineering of Solution-Processable Star-Shaped Molecules for High-Performance Organic Solar Cells Journal Article ADVANCED ENERGY MATERIALS, 4 (5), 2014, ISSN: 1614-6832. @article{ISI:000333708100005b, title = {Alkyl Chain Engineering of Solution-Processable Star-Shaped Molecules for High-Performance Organic Solar Cells}, author = {Jie Min and Yuriy N Luponosov and Andreas Gerl and Marina S Polinskaya and Svetlana M Peregudova and Petr V Dmitryakov and Artem V Bakirov and Maxim A Shcherbina and Sergei N Chvalun and Souren Grigorian and Nina Kaush-Busies and Sergei A Ponomarenko and Tayebeh Ameri and Christoph J Brabec}, doi = {10.1002/aenm.201301234}, issn = {1614-6832}, year = {2014}, date = {2014-04-01}, journal = {ADVANCED ENERGY MATERIALS}, volume = {4}, number = {5}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ivanova, Alesja; Fattakhova-Rohlfing, Dina; Kayaalp, Bugra Eymer; Rathousky, Jiri; Bein, Thomas Tailoring the Morphology of Mesoporous Titania Thin Films through Biotemplating with Nanocrystalline Cellulose Journal Article JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 136 (16), pp. 5930-5937, 2014, ISSN: 0002-7863. @article{ISI:000335086100028b, title = {Tailoring the Morphology of Mesoporous Titania Thin Films through Biotemplating with Nanocrystalline Cellulose}, author = {Alesja Ivanova and Dina Fattakhova-Rohlfing and Bugra Eymer Kayaalp and Jiri Rathousky and Thomas Bein}, doi = {10.1021/ja411292u}, issn = {0002-7863}, year = {2014}, date = {2014-04-01}, journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, volume = {136}, number = {16}, pages = {5930-5937}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Otte, Matthias; Kuijpers, Petrus F; Troeppner, Oliver; Ivanovic-Burmazovic, Ivana; Reek, Joost N H; de Bruin, Bas Encapsulated Cobalt-Porphyrin as a Catalyst for Size-Selective Radical-type Cyclopropanation Reactions Journal Article CHEMISTRY-A EUROPEAN JOURNAL, 20 (17), pp. 4880-4884, 2014, ISSN: 0947-6539. @article{ISI:000334396900003b, title = {Encapsulated Cobalt-Porphyrin as a Catalyst for Size-Selective Radical-type Cyclopropanation Reactions}, author = {Matthias Otte and Petrus F Kuijpers and Oliver Troeppner and Ivana Ivanovic-Burmazovic and Joost N H Reek and Bas de Bruin}, doi = {10.1002/chem.201400055}, issn = {0947-6539}, year = {2014}, date = {2014-04-01}, journal = {CHEMISTRY-A EUROPEAN JOURNAL}, volume = {20}, number = {17}, pages = {4880-4884}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Hufnagel, Martin; Muth, Mathis-Andreas; Brendel, Johannes C; Thelakkat, Mukundan Fullerene-Grafted Copolymers Exhibiting High Electron Mobility without Nanocrystal Formation Journal Article MACROMOLECULES, 47 (7), pp. 2324-2332, 2014, ISSN: 0024-9297. @article{ISI:000338807300016b, title = {Fullerene-Grafted Copolymers Exhibiting High Electron Mobility without Nanocrystal Formation}, author = {Martin Hufnagel and Mathis-Andreas Muth and Johannes C Brendel and Mukundan Thelakkat}, doi = {10.1021/ma402609y}, issn = {0024-9297}, year = {2014}, date = {2014-04-01}, journal = {MACROMOLECULES}, volume = {47}, number = {7}, pages = {2324-2332}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Januszewski, Johanna A; Hampel, Frank; Neiss, Christian; Goerling, Andreas; Tykwinski, Rik R Unexpected Formation of a [4]Radialene and Dendralenes by Addition of Tetracyanoethylene to a Tetraaryl[5]cumulene Journal Article ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 53 (14), pp. 3743-3747, 2014, ISSN: 1433-7851. @article{ISI:000337176800023b, title = {Unexpected Formation of a [4]Radialene and Dendralenes by Addition of Tetracyanoethylene to a Tetraaryl[5]cumulene}, author = {Johanna A Januszewski and Frank Hampel and Christian Neiss and Andreas Goerling and Rik R Tykwinski}, doi = {10.1002/anie.201309355}, issn = {1433-7851}, year = {2014}, date = {2014-04-01}, journal = {ANGEWANDTE CHEMIE-INTERNATIONAL EDITION}, volume = {53}, number = {14}, pages = {3743-3747}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Medina, Dana D; Werner, Veronika; Auras, Florian; Tautz, Raphael; Dogru, Mirjam; Schuster, Joerg; Linke, Stephanie; Doeblinger, Markus; Feldmann, Jochen; Knochel, Paul; Bein, Thomas Oriented Thin Films of a Benzodithiophene Covalent Organic Framework Journal Article ACS NANO, 8 (4), pp. 4042-4052, 2014, ISSN: 1936-0851. @article{ISI:000334990600103b, title = {Oriented Thin Films of a Benzodithiophene Covalent Organic Framework}, author = {Dana D Medina and Veronika Werner and Florian Auras and Raphael Tautz and Mirjam Dogru and Joerg Schuster and Stephanie Linke and Markus Doeblinger and Jochen Feldmann and Paul Knochel and Thomas Bein}, doi = {10.1021/nn5000223}, issn = {1936-0851}, year = {2014}, date = {2014-04-01}, journal = {ACS NANO}, volume = {8}, number = {4}, pages = {4042-4052}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Jumabekov, Askhat N; Deschler, Felix; Boehm, Daniel; Peter, Laurence M; Feldmann, Jochen; Bein, Thomas Quantum-Dot-Sensitized Solar Cells with Water-Soluble and Air-Stable PbS Quantum Dots Journal Article JOURNAL OF PHYSICAL CHEMISTRY C, 118 (10), pp. 5142-5149, 2014, ISSN: 1932-7447. @article{ISI:000333005700009b, title = {Quantum-Dot-Sensitized Solar Cells with Water-Soluble and Air-Stable PbS Quantum Dots}, author = {Askhat N Jumabekov and Felix Deschler and Daniel Boehm and Laurence M Peter and Jochen Feldmann and Thomas Bein}, doi = {10.1021/jp4110773}, issn = {1932-7447}, year = {2014}, date = {2014-03-01}, journal = {JOURNAL OF PHYSICAL CHEMISTRY C}, volume = {118}, number = {10}, pages = {5142-5149}, keywords = {}, pubstate = {published}, tppubtype = {article} } |