Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks

Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine an...

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Autores principales: Ma, Duanqi, Xu, Yanlin, Chen, Qiuying, Ding, Huafeng, Tan, Xiaoming, Xu, Qinfeng, Yang, Chuanlu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222501/
https://www.ncbi.nlm.nih.gov/pubmed/37242071
http://dx.doi.org/10.3390/nano13101655
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author Ma, Duanqi
Xu, Yanlin
Chen, Qiuying
Ding, Huafeng
Tan, Xiaoming
Xu, Qinfeng
Yang, Chuanlu
author_facet Ma, Duanqi
Xu, Yanlin
Chen, Qiuying
Ding, Huafeng
Tan, Xiaoming
Xu, Qinfeng
Yang, Chuanlu
author_sort Ma, Duanqi
collection PubMed
description Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine and bromine regions, which change its optical responses. Herein, we synthesize PeQDs combined with mesoporous zinc-based metal organic framework (MOF) crystals, which can greatly improve the stability of anti-anion exchange, including photo-, thermal, and long-term stabilities under illumination. This unique structure provides a solution for improving the performance of perovskite optoelectronic devices and stabilizing mixed-halide perovskite devices.
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spelling pubmed-102225012023-05-28 Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks Ma, Duanqi Xu, Yanlin Chen, Qiuying Ding, Huafeng Tan, Xiaoming Xu, Qinfeng Yang, Chuanlu Nanomaterials (Basel) Article Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine and bromine regions, which change its optical responses. Herein, we synthesize PeQDs combined with mesoporous zinc-based metal organic framework (MOF) crystals, which can greatly improve the stability of anti-anion exchange, including photo-, thermal, and long-term stabilities under illumination. This unique structure provides a solution for improving the performance of perovskite optoelectronic devices and stabilizing mixed-halide perovskite devices. MDPI 2023-05-16 /pmc/articles/PMC10222501/ /pubmed/37242071 http://dx.doi.org/10.3390/nano13101655 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ma, Duanqi
Xu, Yanlin
Chen, Qiuying
Ding, Huafeng
Tan, Xiaoming
Xu, Qinfeng
Yang, Chuanlu
Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title_full Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title_fullStr Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title_full_unstemmed Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title_short Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
title_sort suppressed phase separation of mixed-halide perovskite quantum dots confined in mesoporous metal organic frameworks
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222501/
https://www.ncbi.nlm.nih.gov/pubmed/37242071
http://dx.doi.org/10.3390/nano13101655
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