Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy

Lead halide perovskites (LHPs) have excellent semiconductor properties. They have been used in many applications such as solar cells. Recently, the hot carrier dynamics in this type of material have received much attention as they are useful for enhancing the performance of optoelectrical devices fa...

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Autores principales: Huang, Zhenqiang, Tan, Wenjiang, Ma, Peipei, Yan, Lihe, Si, Jinhai, Hou, Xun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574326/
https://www.ncbi.nlm.nih.gov/pubmed/37836342
http://dx.doi.org/10.3390/nano13192701
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author Huang, Zhenqiang
Tan, Wenjiang
Ma, Peipei
Yan, Lihe
Si, Jinhai
Hou, Xun
author_facet Huang, Zhenqiang
Tan, Wenjiang
Ma, Peipei
Yan, Lihe
Si, Jinhai
Hou, Xun
author_sort Huang, Zhenqiang
collection PubMed
description Lead halide perovskites (LHPs) have excellent semiconductor properties. They have been used in many applications such as solar cells. Recently, the hot carrier dynamics in this type of material have received much attention as they are useful for enhancing the performance of optoelectrical devices fabricated from it. Here, we study the ultrafast hot carrier dynamics of a single CsPbBr(3) microplate using femtosecond Kerr-gated wide-field fluorescence spectroscopy. The transient photoluminescence spectra have been measured under a variety of excitation fluences. The temporal evolution of bandgap renormalization and the competition between hot carrier cooling and the recovery of the renormalized bandgap are clearly revealed.
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spelling pubmed-105743262023-10-14 Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy Huang, Zhenqiang Tan, Wenjiang Ma, Peipei Yan, Lihe Si, Jinhai Hou, Xun Nanomaterials (Basel) Article Lead halide perovskites (LHPs) have excellent semiconductor properties. They have been used in many applications such as solar cells. Recently, the hot carrier dynamics in this type of material have received much attention as they are useful for enhancing the performance of optoelectrical devices fabricated from it. Here, we study the ultrafast hot carrier dynamics of a single CsPbBr(3) microplate using femtosecond Kerr-gated wide-field fluorescence spectroscopy. The transient photoluminescence spectra have been measured under a variety of excitation fluences. The temporal evolution of bandgap renormalization and the competition between hot carrier cooling and the recovery of the renormalized bandgap are clearly revealed. MDPI 2023-10-04 /pmc/articles/PMC10574326/ /pubmed/37836342 http://dx.doi.org/10.3390/nano13192701 Text en © 2023 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
Huang, Zhenqiang
Tan, Wenjiang
Ma, Peipei
Yan, Lihe
Si, Jinhai
Hou, Xun
Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title_full Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title_fullStr Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title_full_unstemmed Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title_short Visualization of Hot Carrier Dynamics in a Single CsPbBr(3) Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy
title_sort visualization of hot carrier dynamics in a single cspbbr(3) perovskite microplate using femtosecond kerr-gated wide-field fluorescence spectroscopy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574326/
https://www.ncbi.nlm.nih.gov/pubmed/37836342
http://dx.doi.org/10.3390/nano13192701
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