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Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)

Low-dimensional metal halide perovskites (MHPs) have received much attention due to their striking semiconducting properties tunable at a molecular level, which hold great potential in the development of next-generation optoelectronic devices. However, the insufficient understanding of their stimulu...

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Autores principales: Feng, Rui, Fan, Jia-Hui, Li, Kai, Li, Zhi-Gang, Qin, Yan, Li, Zi-Ying, Li, Wei, Bu, Xian-He
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839927/
https://www.ncbi.nlm.nih.gov/pubmed/35163993
http://dx.doi.org/10.3390/molecules27030728
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author Feng, Rui
Fan, Jia-Hui
Li, Kai
Li, Zhi-Gang
Qin, Yan
Li, Zi-Ying
Li, Wei
Bu, Xian-He
author_facet Feng, Rui
Fan, Jia-Hui
Li, Kai
Li, Zhi-Gang
Qin, Yan
Li, Zi-Ying
Li, Wei
Bu, Xian-He
author_sort Feng, Rui
collection PubMed
description Low-dimensional metal halide perovskites (MHPs) have received much attention due to their striking semiconducting properties tunable at a molecular level, which hold great potential in the development of next-generation optoelectronic devices. However, the insufficient understanding of their stimulus-responsiveness and elastic properties hinders future practical applications. Here, the thermally responsive emissions and elastic properties of one-dimensional lead halide perovskites R- and S-MBAPbBr(3) (MBA(+) = methylbenzylamine) were systematically investigated via temperature-dependent photoluminescence (PL) experiments and first-principles calculations. The PL peak positions of both perovskites were redshifted by about 20 nm, and the corresponding full width at half maximum was reduced by about 40 nm, from ambient temperature to about 150 K. This kind of temperature-responsive self-trapped exciton emission could be attributed to the synergistic effect of electron–phonon coupling and thermal expansion due to the alteration of hydrogen bonding. Moreover, the elastic properties of S-MBAPbBr(3) were calculated using density functional theory, revealing that its Young’s and shear moduli are in the range of 6.5–33.2 and 2.8–19.5 GPa, respectively, even smaller than those of two-dimensional MHPs. Our work demonstrates that the temperature-responsive emissions and low elastic moduli of these 1D MHPs could find use in flexible devices.
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spelling pubmed-88399272022-02-13 Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3) Feng, Rui Fan, Jia-Hui Li, Kai Li, Zhi-Gang Qin, Yan Li, Zi-Ying Li, Wei Bu, Xian-He Molecules Article Low-dimensional metal halide perovskites (MHPs) have received much attention due to their striking semiconducting properties tunable at a molecular level, which hold great potential in the development of next-generation optoelectronic devices. However, the insufficient understanding of their stimulus-responsiveness and elastic properties hinders future practical applications. Here, the thermally responsive emissions and elastic properties of one-dimensional lead halide perovskites R- and S-MBAPbBr(3) (MBA(+) = methylbenzylamine) were systematically investigated via temperature-dependent photoluminescence (PL) experiments and first-principles calculations. The PL peak positions of both perovskites were redshifted by about 20 nm, and the corresponding full width at half maximum was reduced by about 40 nm, from ambient temperature to about 150 K. This kind of temperature-responsive self-trapped exciton emission could be attributed to the synergistic effect of electron–phonon coupling and thermal expansion due to the alteration of hydrogen bonding. Moreover, the elastic properties of S-MBAPbBr(3) were calculated using density functional theory, revealing that its Young’s and shear moduli are in the range of 6.5–33.2 and 2.8–19.5 GPa, respectively, even smaller than those of two-dimensional MHPs. Our work demonstrates that the temperature-responsive emissions and low elastic moduli of these 1D MHPs could find use in flexible devices. MDPI 2022-01-23 /pmc/articles/PMC8839927/ /pubmed/35163993 http://dx.doi.org/10.3390/molecules27030728 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
Feng, Rui
Fan, Jia-Hui
Li, Kai
Li, Zhi-Gang
Qin, Yan
Li, Zi-Ying
Li, Wei
Bu, Xian-He
Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title_full Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title_fullStr Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title_full_unstemmed Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title_short Temperature-Responsive Photoluminescence and Elastic Properties of 1D Lead Halide Perovskites R- and S-(Methylbenzylamine)PbBr(3)
title_sort temperature-responsive photoluminescence and elastic properties of 1d lead halide perovskites r- and s-(methylbenzylamine)pbbr(3)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839927/
https://www.ncbi.nlm.nih.gov/pubmed/35163993
http://dx.doi.org/10.3390/molecules27030728
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