Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications
Organic–inorganic halide organometal perovskites have demonstrated very promising performance in optoelectronic applications, but their relatively poor chemical and colloidal stability hampers the further improvement of devices based on these materials. Perovskite material engineering is crucial for...
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doaj-8d82bd79e7fd494e82c1a32d9d0dde722020-11-30T00:02:21ZengMDPI AGNanomaterials2079-49912020-11-01102382238210.3390/nano10122382Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting ApplicationsSaif M. H. Qaid0Hamid M. Ghaithan1Bandar Ali Al-Asbahi2Abdullah S. Aldwayyan3Physics and Astronomy Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaPhysics and Astronomy Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaPhysics and Astronomy Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaPhysics and Astronomy Department, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaOrganic–inorganic halide organometal perovskites have demonstrated very promising performance in optoelectronic applications, but their relatively poor chemical and colloidal stability hampers the further improvement of devices based on these materials. Perovskite material engineering is crucial for achieving high photoluminescence quantum yields (PLQYs) and long stability. Herein, these goals are attained by incorporating bulk-structure CsPbBr<sub>3</sub>, which prevents colloidal degradation, into polymethyl methacrylate (PMMA) polymer in thin-disk form. This technology can potentially realize future disk lasers with no optical and structural contributions from the polymer. The polycrystalline CsPbBr<sub>3</sub> perovskite particles were simply obtained by using a mechanical processing technique. The CsPbBr<sub>3</sub> was then incorporated into the PMMA polymer using a solution blending method. The polymer enhanced the PLQYs by removing the surface trap states and increasing the water resistance and stability under ambient conditions. In our experimental investigation, the CsPbBr<sub>3</sub>/PMMA composites were extraordinarily stable and remained strongly luminescent after water immersion for three months and air exposure for over one year, maintaining 80% of their initial photoluminescence intensity. The CsPbBr<sub>3</sub>/PMMA thin disk produced amplified spontaneous emission for a long time in air and for more than two weeks in water.https://www.mdpi.com/2079-4991/10/12/2382amplified spontaneous emissionthin-diskperovskitestability |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Saif M. H. Qaid Hamid M. Ghaithan Bandar Ali Al-Asbahi Abdullah S. Aldwayyan |
spellingShingle |
Saif M. H. Qaid Hamid M. Ghaithan Bandar Ali Al-Asbahi Abdullah S. Aldwayyan Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications Nanomaterials amplified spontaneous emission thin-disk perovskite stability |
author_facet |
Saif M. H. Qaid Hamid M. Ghaithan Bandar Ali Al-Asbahi Abdullah S. Aldwayyan |
author_sort |
Saif M. H. Qaid |
title |
Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications |
title_short |
Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications |
title_full |
Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications |
title_fullStr |
Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications |
title_full_unstemmed |
Ultra-Stable Polycrystalline CsPbBr<sub>3</sub> Perovskite–Polymer Composite Thin Disk for Light-Emitting Applications |
title_sort |
ultra-stable polycrystalline cspbbr<sub>3</sub> perovskite–polymer composite thin disk for light-emitting applications |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2020-11-01 |
description |
Organic–inorganic halide organometal perovskites have demonstrated very promising performance in optoelectronic applications, but their relatively poor chemical and colloidal stability hampers the further improvement of devices based on these materials. Perovskite material engineering is crucial for achieving high photoluminescence quantum yields (PLQYs) and long stability. Herein, these goals are attained by incorporating bulk-structure CsPbBr<sub>3</sub>, which prevents colloidal degradation, into polymethyl methacrylate (PMMA) polymer in thin-disk form. This technology can potentially realize future disk lasers with no optical and structural contributions from the polymer. The polycrystalline CsPbBr<sub>3</sub> perovskite particles were simply obtained by using a mechanical processing technique. The CsPbBr<sub>3</sub> was then incorporated into the PMMA polymer using a solution blending method. The polymer enhanced the PLQYs by removing the surface trap states and increasing the water resistance and stability under ambient conditions. In our experimental investigation, the CsPbBr<sub>3</sub>/PMMA composites were extraordinarily stable and remained strongly luminescent after water immersion for three months and air exposure for over one year, maintaining 80% of their initial photoluminescence intensity. The CsPbBr<sub>3</sub>/PMMA thin disk produced amplified spontaneous emission for a long time in air and for more than two weeks in water. |
topic |
amplified spontaneous emission thin-disk perovskite stability |
url |
https://www.mdpi.com/2079-4991/10/12/2382 |
work_keys_str_mv |
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