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Plasmon-induced trap filling at grain boundaries in perovskite solar cells

The deep-level traps induced by charged defects at the grain boundaries (GBs) of polycrystalline organic–inorganic halide perovskite (OIHP) films serve as major recombination centres, which limit the device performance. Herein, we incorporate specially designed poly(3-aminothiophenol)-coated gold (A...

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Autores principales: Yao, Kai, Li, Siqi, Liu, Zhiliang, Ying, Yiran, Dvořák, Petr, Fei, Linfeng, Šikola, Tomáš, Huang, Haitao, Nordlander, Peter, Jen, Alex K.-Y., Lei, Dangyuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8553803/
https://www.ncbi.nlm.nih.gov/pubmed/34711799
http://dx.doi.org/10.1038/s41377-021-00662-y
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author Yao, Kai
Li, Siqi
Liu, Zhiliang
Ying, Yiran
Dvořák, Petr
Fei, Linfeng
Šikola, Tomáš
Huang, Haitao
Nordlander, Peter
Jen, Alex K.-Y.
Lei, Dangyuan
author_facet Yao, Kai
Li, Siqi
Liu, Zhiliang
Ying, Yiran
Dvořák, Petr
Fei, Linfeng
Šikola, Tomáš
Huang, Haitao
Nordlander, Peter
Jen, Alex K.-Y.
Lei, Dangyuan
author_sort Yao, Kai
collection PubMed
description The deep-level traps induced by charged defects at the grain boundaries (GBs) of polycrystalline organic–inorganic halide perovskite (OIHP) films serve as major recombination centres, which limit the device performance. Herein, we incorporate specially designed poly(3-aminothiophenol)-coated gold (Au@PAT) nanoparticles into the perovskite absorber, in order to examine the influence of plasmonic resonance on carrier dynamics in perovskite solar cells. Local changes in the photophysical properties of the OIHP films reveal that plasmon excitation could fill trap sites at the GB region through photo-brightening, whereas transient absorption spectroscopy and density functional theory calculations correlate this photo-brightening of trap states with plasmon-induced interfacial processes. As a result, the device achieved the best efficiency of 22.0% with robust operational stability. Our work provides unambiguous evidence for plasmon-induced trap occupation in OIHP and reveals that plasmonic nanostructures may be one type of efficient additives to overcome the recombination losses in perovskite solar cells and thin-film solar cells in general.
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spelling pubmed-85538032021-10-29 Plasmon-induced trap filling at grain boundaries in perovskite solar cells Yao, Kai Li, Siqi Liu, Zhiliang Ying, Yiran Dvořák, Petr Fei, Linfeng Šikola, Tomáš Huang, Haitao Nordlander, Peter Jen, Alex K.-Y. Lei, Dangyuan Light Sci Appl Article The deep-level traps induced by charged defects at the grain boundaries (GBs) of polycrystalline organic–inorganic halide perovskite (OIHP) films serve as major recombination centres, which limit the device performance. Herein, we incorporate specially designed poly(3-aminothiophenol)-coated gold (Au@PAT) nanoparticles into the perovskite absorber, in order to examine the influence of plasmonic resonance on carrier dynamics in perovskite solar cells. Local changes in the photophysical properties of the OIHP films reveal that plasmon excitation could fill trap sites at the GB region through photo-brightening, whereas transient absorption spectroscopy and density functional theory calculations correlate this photo-brightening of trap states with plasmon-induced interfacial processes. As a result, the device achieved the best efficiency of 22.0% with robust operational stability. Our work provides unambiguous evidence for plasmon-induced trap occupation in OIHP and reveals that plasmonic nanostructures may be one type of efficient additives to overcome the recombination losses in perovskite solar cells and thin-film solar cells in general. Nature Publishing Group UK 2021-10-28 /pmc/articles/PMC8553803/ /pubmed/34711799 http://dx.doi.org/10.1038/s41377-021-00662-y Text en © The Author(s) 2021, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Yao, Kai
Li, Siqi
Liu, Zhiliang
Ying, Yiran
Dvořák, Petr
Fei, Linfeng
Šikola, Tomáš
Huang, Haitao
Nordlander, Peter
Jen, Alex K.-Y.
Lei, Dangyuan
Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title_full Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title_fullStr Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title_full_unstemmed Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title_short Plasmon-induced trap filling at grain boundaries in perovskite solar cells
title_sort plasmon-induced trap filling at grain boundaries in perovskite solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8553803/
https://www.ncbi.nlm.nih.gov/pubmed/34711799
http://dx.doi.org/10.1038/s41377-021-00662-y
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