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Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs
Lead-free all-inorganic halide materials with different Mn(2+)-based crystal structures (Cs(3)MnBr(5) and CsMnBr(3)) were obtained using a convenient synthetic method. Cs(3)MnBr(5) had a bright green emission (522 nm), with a unique single-exponential lifetime (τ(avg) = 236 µs) and a high photolumin...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736304/ https://www.ncbi.nlm.nih.gov/pubmed/36500354 http://dx.doi.org/10.3390/molecules27238259 |
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author | Gao, Ping Cheng, Suwen Liu, Jiaxin Li, Junjie Guo, Yanyan Deng, Zhengtao Qin, Tianshi Wang, Aifei |
author_facet | Gao, Ping Cheng, Suwen Liu, Jiaxin Li, Junjie Guo, Yanyan Deng, Zhengtao Qin, Tianshi Wang, Aifei |
author_sort | Gao, Ping |
collection | PubMed |
description | Lead-free all-inorganic halide materials with different Mn(2+)-based crystal structures (Cs(3)MnBr(5) and CsMnBr(3)) were obtained using a convenient synthetic method. Cs(3)MnBr(5) had a bright green emission (522 nm), with a unique single-exponential lifetime (τ(avg) = 236 µs) and a high photoluminescence quantum yield (82 ± 5%). A red emission was observed in the case of the CsMnBr(3) structure with a two-exponential fluorescence decay curve, and the lifetime was 1.418 µs (93%) and 18.328 µs (7%), respectively. By a judicious tuning of the synthetic conditions, a mixed phase of Cs(3)MnBr(5)/CsMnBr(3) was also produced that emitted white light, covering almost the entire visible spectrum. White-light-emitting diodes (WLEDs) with color coordinates (0.4269, 0.4955), a color temperature of (3773 K), and a color rendering index (68) were then fabricated using the as-prepared powder of mixed phases of Cs(3)MnBr(5)/CsMnBr(3) with a commercial UV LED chip (365 nm). |
format | Online Article Text |
id | pubmed-9736304 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97363042022-12-11 Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs Gao, Ping Cheng, Suwen Liu, Jiaxin Li, Junjie Guo, Yanyan Deng, Zhengtao Qin, Tianshi Wang, Aifei Molecules Article Lead-free all-inorganic halide materials with different Mn(2+)-based crystal structures (Cs(3)MnBr(5) and CsMnBr(3)) were obtained using a convenient synthetic method. Cs(3)MnBr(5) had a bright green emission (522 nm), with a unique single-exponential lifetime (τ(avg) = 236 µs) and a high photoluminescence quantum yield (82 ± 5%). A red emission was observed in the case of the CsMnBr(3) structure with a two-exponential fluorescence decay curve, and the lifetime was 1.418 µs (93%) and 18.328 µs (7%), respectively. By a judicious tuning of the synthetic conditions, a mixed phase of Cs(3)MnBr(5)/CsMnBr(3) was also produced that emitted white light, covering almost the entire visible spectrum. White-light-emitting diodes (WLEDs) with color coordinates (0.4269, 0.4955), a color temperature of (3773 K), and a color rendering index (68) were then fabricated using the as-prepared powder of mixed phases of Cs(3)MnBr(5)/CsMnBr(3) with a commercial UV LED chip (365 nm). MDPI 2022-11-26 /pmc/articles/PMC9736304/ /pubmed/36500354 http://dx.doi.org/10.3390/molecules27238259 Text en © 2022 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 Gao, Ping Cheng, Suwen Liu, Jiaxin Li, Junjie Guo, Yanyan Deng, Zhengtao Qin, Tianshi Wang, Aifei Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title | Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title_full | Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title_fullStr | Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title_full_unstemmed | Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title_short | Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs |
title_sort | facile synthesis of highly emissive all-inorganic manganese bromide compounds with perovskite-related structures for white leds |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736304/ https://www.ncbi.nlm.nih.gov/pubmed/36500354 http://dx.doi.org/10.3390/molecules27238259 |
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