Search references:
| 1. | Chen, Wei; Tang, Haodong; Chen, Yulong; Heger, Julian E; Li, Nian; Kreuzer, Lucas P; Xie, Yue; Li, Depeng; Anthony, Carl; Pikramenou, Zoe; Ng, Kar Wei; Sun, Xiao Wei; Wang, Kai; Müller-Buschbaum, Peter: Spray-deposited PbS colloidal quantum dot solid for near-infrared photodetectors. In: Nano Energy, 78 , pp. 105254, 2020, ISSN: 2211-2855. (Type: Journal Article | Abstract | Links | BibTeX) @article{Chen2020a, title = {Spray-deposited PbS colloidal quantum dot solid for near-infrared photodetectors}, author = {Wei Chen and Haodong Tang and Yulong Chen and Julian E Heger and Nian Li and Lucas P Kreuzer and Yue Xie and Depeng Li and Carl Anthony and Zoe Pikramenou and Kar Wei Ng and Xiao Wei Sun and Kai Wang and Peter Müller-Buschbaum}, url = {http://www.sciencedirect.com/science/article/pii/S2211285520308326}, doi = {https://doi.org/10.1016/j.nanoen.2020.105254}, issn = {2211-2855}, year = {2020}, date = {2020-01-01}, journal = {Nano Energy}, volume = {78}, pages = {105254}, abstract = {Colloidal PbS quantum dots (QDs) are promising candidates for various optoelectronic applications based on solution-processed thin-film techniques. In this work, a versatile layer-by-layer (LBL) spray deposition of the QDs is introduced aiming for a future large-scale fabrication process of optoelectronic devices. As compared to spin-coated QD solids, a smaller inter-dot distance and a better-ordered superlattice stacking behavior of the QDs are found in the spray-deposited QD solids as confirmed by grazing-incidence small-angle X-ray scattering (GISAXS). The spectral mapping combined time-resolved photoluminescence analysis indicates a longer charge carrier lifetime and better order of the energy state distribution of the spray-deposited QD solid comparing with the spin-coated one. Thus, photodetectors based on spray deposition of QD solids demonstrate an excellent device performance, with the responsivity achieving 365.1 A/W and the detectivity reaching up to 1.4 × 1012 Jones under an illumination power of 63.5 μW/cm2 at a wavelength of 1250 nm. The spray-deposited device performances indicate a great potential of spray deposition of large sized QDs in large-scale fabrications for optoelectronics using longer wavelengths.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Colloidal PbS quantum dots (QDs) are promising candidates for various optoelectronic applications based on solution-processed thin-film techniques. In this work, a versatile layer-by-layer (LBL) spray deposition of the QDs is introduced aiming for a future large-scale fabrication process of optoelectronic devices. As compared to spin-coated QD solids, a smaller inter-dot distance and a better-ordered superlattice stacking behavior of the QDs are found in the spray-deposited QD solids as confirmed by grazing-incidence small-angle X-ray scattering (GISAXS). The spectral mapping combined time-resolved photoluminescence analysis indicates a longer charge carrier lifetime and better order of the energy state distribution of the spray-deposited QD solid comparing with the spin-coated one. Thus, photodetectors based on spray deposition of QD solids demonstrate an excellent device performance, with the responsivity achieving 365.1 A/W and the detectivity reaching up to 1.4 × 1012 Jones under an illumination power of 63.5 μW/cm2 at a wavelength of 1250 nm. The spray-deposited device performances indicate a great potential of spray deposition of large sized QDs in large-scale fabrications for optoelectronics using longer wavelengths. |
References (last update: Sept. 23, 2024):
2020 |
Chen, Wei; Tang, Haodong; Chen, Yulong; Heger, Julian E; Li, Nian; Kreuzer, Lucas P; Xie, Yue; Li, Depeng; Anthony, Carl; Pikramenou, Zoe; Ng, Kar Wei; Sun, Xiao Wei; Wang, Kai; Müller-Buschbaum, Peter Spray-deposited PbS colloidal quantum dot solid for near-infrared photodetectors Journal Article Nano Energy, 78 , pp. 105254, 2020, ISSN: 2211-2855. Abstract | Links | BibTeX | Tags: GISAXS, Near-infrared photodetector, PbS quantum Dots, Spray deposition @article{Chen2020a, title = {Spray-deposited PbS colloidal quantum dot solid for near-infrared photodetectors}, author = {Wei Chen and Haodong Tang and Yulong Chen and Julian E Heger and Nian Li and Lucas P Kreuzer and Yue Xie and Depeng Li and Carl Anthony and Zoe Pikramenou and Kar Wei Ng and Xiao Wei Sun and Kai Wang and Peter Müller-Buschbaum}, url = {http://www.sciencedirect.com/science/article/pii/S2211285520308326}, doi = {https://doi.org/10.1016/j.nanoen.2020.105254}, issn = {2211-2855}, year = {2020}, date = {2020-01-01}, journal = {Nano Energy}, volume = {78}, pages = {105254}, abstract = {Colloidal PbS quantum dots (QDs) are promising candidates for various optoelectronic applications based on solution-processed thin-film techniques. In this work, a versatile layer-by-layer (LBL) spray deposition of the QDs is introduced aiming for a future large-scale fabrication process of optoelectronic devices. As compared to spin-coated QD solids, a smaller inter-dot distance and a better-ordered superlattice stacking behavior of the QDs are found in the spray-deposited QD solids as confirmed by grazing-incidence small-angle X-ray scattering (GISAXS). The spectral mapping combined time-resolved photoluminescence analysis indicates a longer charge carrier lifetime and better order of the energy state distribution of the spray-deposited QD solid comparing with the spin-coated one. Thus, photodetectors based on spray deposition of QD solids demonstrate an excellent device performance, with the responsivity achieving 365.1 A/W and the detectivity reaching up to 1.4 × 1012 Jones under an illumination power of 63.5 μW/cm2 at a wavelength of 1250 nm. The spray-deposited device performances indicate a great potential of spray deposition of large sized QDs in large-scale fabrications for optoelectronics using longer wavelengths.}, keywords = {GISAXS, Near-infrared photodetector, PbS quantum Dots, Spray deposition}, pubstate = {published}, tppubtype = {article} } Colloidal PbS quantum dots (QDs) are promising candidates for various optoelectronic applications based on solution-processed thin-film techniques. In this work, a versatile layer-by-layer (LBL) spray deposition of the QDs is introduced aiming for a future large-scale fabrication process of optoelectronic devices. As compared to spin-coated QD solids, a smaller inter-dot distance and a better-ordered superlattice stacking behavior of the QDs are found in the spray-deposited QD solids as confirmed by grazing-incidence small-angle X-ray scattering (GISAXS). The spectral mapping combined time-resolved photoluminescence analysis indicates a longer charge carrier lifetime and better order of the energy state distribution of the spray-deposited QD solid comparing with the spin-coated one. Thus, photodetectors based on spray deposition of QD solids demonstrate an excellent device performance, with the responsivity achieving 365.1 A/W and the detectivity reaching up to 1.4 × 1012 Jones under an illumination power of 63.5 μW/cm2 at a wavelength of 1250 nm. The spray-deposited device performances indicate a great potential of spray deposition of large sized QDs in large-scale fabrications for optoelectronics using longer wavelengths. |