Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Gao, Ping, Cheng, Suwen, Liu, Jiaxin, Li, Junjie, Guo, Yanyan, Deng, Zhengtao, Qin, Tianshi, Wang, Aifei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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
_version_ 1784846991792013312
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
work_keys_str_mv AT gaoping facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT chengsuwen facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT liujiaxin facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT lijunjie facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT guoyanyan facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT dengzhengtao facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT qintianshi facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds
AT wangaifei facilesynthesisofhighlyemissiveallinorganicmanganesebromidecompoundswithperovskiterelatedstructuresforwhiteleds