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Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs

Recently, lead halide perovskite nanocrystals (NCs) have attracted extensive attention due to their unique optical properties. However, the toxicity of lead and the instability to moisture obstruct their further commercial development. Herein, a series of lead-free CsMnX(3) (X = Cl, Br, and I) NCs e...

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Autores principales: Xu, Guangyong, Wang, Chuying, Li, Yacong, Meng, Wen, Luo, Guigen, Peng, Min, Xu, Bin, Deng, Zhengtao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10207884/
https://www.ncbi.nlm.nih.gov/pubmed/37234884
http://dx.doi.org/10.1039/d3sc01084h
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author Xu, Guangyong
Wang, Chuying
Li, Yacong
Meng, Wen
Luo, Guigen
Peng, Min
Xu, Bin
Deng, Zhengtao
author_facet Xu, Guangyong
Wang, Chuying
Li, Yacong
Meng, Wen
Luo, Guigen
Peng, Min
Xu, Bin
Deng, Zhengtao
author_sort Xu, Guangyong
collection PubMed
description Recently, lead halide perovskite nanocrystals (NCs) have attracted extensive attention due to their unique optical properties. However, the toxicity of lead and the instability to moisture obstruct their further commercial development. Herein, a series of lead-free CsMnX(3) (X = Cl, Br, and I) NCs embedded in glasses were synthesized by a high temperature solid-state chemistry method. These NCs embedded in glass can remain stable after soaking in water for 90 days. It is found that increasing the amount of cesium carbonate in the synthesis process can not only prevent the oxidation of Mn(2+) to Mn(3+) and promote the transparency of glass in the 450–700 nm region, but also significantly increase its photoluminescence quantum yield (PLQY) from 2.9% to 65.1%, which is the highest reported value of the red CsMnX(3) NCs so far. Using CsMnBr(3) NCs with a red emission peak at 649 nm and full-width-at-half-maximum (FWHM) of 130 nm as the red light source, a white light-emitting diode (LED) device with International Commission on illumination (CIE) coordinates of (0.33, 0.36) and a color rendering index (CRI) of 94 was obtained. These findings, together with future research, are likely to yield stable and bright lead-free NCs for the next generation of solid-state lighting.
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spelling pubmed-102078842023-05-25 Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs Xu, Guangyong Wang, Chuying Li, Yacong Meng, Wen Luo, Guigen Peng, Min Xu, Bin Deng, Zhengtao Chem Sci Chemistry Recently, lead halide perovskite nanocrystals (NCs) have attracted extensive attention due to their unique optical properties. However, the toxicity of lead and the instability to moisture obstruct their further commercial development. Herein, a series of lead-free CsMnX(3) (X = Cl, Br, and I) NCs embedded in glasses were synthesized by a high temperature solid-state chemistry method. These NCs embedded in glass can remain stable after soaking in water for 90 days. It is found that increasing the amount of cesium carbonate in the synthesis process can not only prevent the oxidation of Mn(2+) to Mn(3+) and promote the transparency of glass in the 450–700 nm region, but also significantly increase its photoluminescence quantum yield (PLQY) from 2.9% to 65.1%, which is the highest reported value of the red CsMnX(3) NCs so far. Using CsMnBr(3) NCs with a red emission peak at 649 nm and full-width-at-half-maximum (FWHM) of 130 nm as the red light source, a white light-emitting diode (LED) device with International Commission on illumination (CIE) coordinates of (0.33, 0.36) and a color rendering index (CRI) of 94 was obtained. These findings, together with future research, are likely to yield stable and bright lead-free NCs for the next generation of solid-state lighting. The Royal Society of Chemistry 2023-04-17 /pmc/articles/PMC10207884/ /pubmed/37234884 http://dx.doi.org/10.1039/d3sc01084h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xu, Guangyong
Wang, Chuying
Li, Yacong
Meng, Wen
Luo, Guigen
Peng, Min
Xu, Bin
Deng, Zhengtao
Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title_full Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title_fullStr Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title_full_unstemmed Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title_short Solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white LEDs
title_sort solid-state synthesis of cesium manganese halide nanocrystals in glass with bright and broad red emission for white leds
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10207884/
https://www.ncbi.nlm.nih.gov/pubmed/37234884
http://dx.doi.org/10.1039/d3sc01084h
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