Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies

This work clarified the effects of self-assembly of perovskite cesium lead bromide (CsPbBr(3)) nanocubes (NCs) covered with didodecyldimethyl ammonium bromide (DDAB) on photoluminescence (PL) properties. Although the PL intensity of isolated NCs was weakened in the solid state even under inert condi...

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Autores principales: Sasaki, Moeka, Hashimoto, Shota, Iso, Yoshiki, Oaki, Yuya, Isobe, Tetsuhiko, Imai, Hiroaki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2023
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10153085/
https://www.ncbi.nlm.nih.gov/pubmed/37143814
http://dx.doi.org/10.1039/d2na00784c
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author Sasaki, Moeka
Hashimoto, Shota
Iso, Yoshiki
Oaki, Yuya
Isobe, Tetsuhiko
Imai, Hiroaki
author_facet Sasaki, Moeka
Hashimoto, Shota
Iso, Yoshiki
Oaki, Yuya
Isobe, Tetsuhiko
Imai, Hiroaki
author_sort Sasaki, Moeka
collection PubMed
description This work clarified the effects of self-assembly of perovskite cesium lead bromide (CsPbBr(3)) nanocubes (NCs) covered with didodecyldimethyl ammonium bromide (DDAB) on photoluminescence (PL) properties. Although the PL intensity of isolated NCs was weakened in the solid state even under inert conditions, the quantum yield of PL (PLQY) and the photostability of DDAB-covered NCs were drastically improved by the formation of two-dimensional (2D) ordered arrays on a substrate. The PLQY of the 2D arrays increased to ca. 60% by initial excitation illumination at 468 nm and was maintained for over 4000 h. The improved PL properties are attributable to the fixation of the surface ligand around the NCs in the specific ordered arrays.
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spelling pubmed-101530852023-05-03 Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies Sasaki, Moeka Hashimoto, Shota Iso, Yoshiki Oaki, Yuya Isobe, Tetsuhiko Imai, Hiroaki Nanoscale Adv Chemistry This work clarified the effects of self-assembly of perovskite cesium lead bromide (CsPbBr(3)) nanocubes (NCs) covered with didodecyldimethyl ammonium bromide (DDAB) on photoluminescence (PL) properties. Although the PL intensity of isolated NCs was weakened in the solid state even under inert conditions, the quantum yield of PL (PLQY) and the photostability of DDAB-covered NCs were drastically improved by the formation of two-dimensional (2D) ordered arrays on a substrate. The PLQY of the 2D arrays increased to ca. 60% by initial excitation illumination at 468 nm and was maintained for over 4000 h. The improved PL properties are attributable to the fixation of the surface ligand around the NCs in the specific ordered arrays. RSC 2023-04-03 /pmc/articles/PMC10153085/ /pubmed/37143814 http://dx.doi.org/10.1039/d2na00784c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Sasaki, Moeka
Hashimoto, Shota
Iso, Yoshiki
Oaki, Yuya
Isobe, Tetsuhiko
Imai, Hiroaki
Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title_full Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title_fullStr Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title_full_unstemmed Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title_short Enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
title_sort enhanced and stabilized photoluminescence of perovskite cesium lead bromide nanocubes through ordered assemblies
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10153085/
https://www.ncbi.nlm.nih.gov/pubmed/37143814
http://dx.doi.org/10.1039/d2na00784c
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