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High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor

Perovskite quantum dots (PQDs) have been considered promising and effective photovoltaic absorber due to their superior optoelectronic properties and inherent material merits combining perovskites and QDs. However, they exhibit low moisture stability at room humidity (20–30%) owing to many surface d...

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Autores principales: Lim, Seyeong, Lee, Dae Hwan, Choi, Hyuntae, Choi, Yelim, Lee, Dong Geon, Cho, Sung Beom, Ko, Seonkyung, Choi, Jongmin, Kim, Younghoon, Park, Taiho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576836/
https://www.ncbi.nlm.nih.gov/pubmed/36251125
http://dx.doi.org/10.1007/s40820-022-00946-x
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author Lim, Seyeong
Lee, Dae Hwan
Choi, Hyuntae
Choi, Yelim
Lee, Dong Geon
Cho, Sung Beom
Ko, Seonkyung
Choi, Jongmin
Kim, Younghoon
Park, Taiho
author_facet Lim, Seyeong
Lee, Dae Hwan
Choi, Hyuntae
Choi, Yelim
Lee, Dong Geon
Cho, Sung Beom
Ko, Seonkyung
Choi, Jongmin
Kim, Younghoon
Park, Taiho
author_sort Lim, Seyeong
collection PubMed
description Perovskite quantum dots (PQDs) have been considered promising and effective photovoltaic absorber due to their superior optoelectronic properties and inherent material merits combining perovskites and QDs. However, they exhibit low moisture stability at room humidity (20–30%) owing to many surface defect sites generated by inefficient ligand exchange process. These surface traps must be re-passivated to improve both charge transport ability and moisture stability. To address this issue, PQD-organic semiconductor hybrid solar cells with suitable electrical properties and functional groups might dramatically improve the charge extraction and defect passivation. Conventional organic semiconductors are typically low-dimensional (1D and 2D) and prone to excessive self-aggregation, which limits chemical interaction with PQDs. In this work, we designed a new 3D star-shaped semiconducting material (Star-TrCN) to enhance the compatibility with PQDs. The robust bonding with Star-TrCN and PQDs is demonstrated by theoretical modeling and experimental validation. The Star-TrCN-PQD hybrid films show improved cubic-phase stability of CsPbI(3)-PQDs via reduced surface trap states and suppressed moisture penetration. As a result, the resultant devices not only achieve remarkable device stability over 1000 h at 20–30% relative humidity, but also boost power conversion efficiency up to 16.0% via forming a cascade energy band structure. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00946-x.
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spelling pubmed-95768362022-10-19 High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor Lim, Seyeong Lee, Dae Hwan Choi, Hyuntae Choi, Yelim Lee, Dong Geon Cho, Sung Beom Ko, Seonkyung Choi, Jongmin Kim, Younghoon Park, Taiho Nanomicro Lett Article Perovskite quantum dots (PQDs) have been considered promising and effective photovoltaic absorber due to their superior optoelectronic properties and inherent material merits combining perovskites and QDs. However, they exhibit low moisture stability at room humidity (20–30%) owing to many surface defect sites generated by inefficient ligand exchange process. These surface traps must be re-passivated to improve both charge transport ability and moisture stability. To address this issue, PQD-organic semiconductor hybrid solar cells with suitable electrical properties and functional groups might dramatically improve the charge extraction and defect passivation. Conventional organic semiconductors are typically low-dimensional (1D and 2D) and prone to excessive self-aggregation, which limits chemical interaction with PQDs. In this work, we designed a new 3D star-shaped semiconducting material (Star-TrCN) to enhance the compatibility with PQDs. The robust bonding with Star-TrCN and PQDs is demonstrated by theoretical modeling and experimental validation. The Star-TrCN-PQD hybrid films show improved cubic-phase stability of CsPbI(3)-PQDs via reduced surface trap states and suppressed moisture penetration. As a result, the resultant devices not only achieve remarkable device stability over 1000 h at 20–30% relative humidity, but also boost power conversion efficiency up to 16.0% via forming a cascade energy band structure. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00946-x. Springer Nature Singapore 2022-10-17 /pmc/articles/PMC9576836/ /pubmed/36251125 http://dx.doi.org/10.1007/s40820-022-00946-x Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lim, Seyeong
Lee, Dae Hwan
Choi, Hyuntae
Choi, Yelim
Lee, Dong Geon
Cho, Sung Beom
Ko, Seonkyung
Choi, Jongmin
Kim, Younghoon
Park, Taiho
High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title_full High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title_fullStr High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title_full_unstemmed High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title_short High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
title_sort high-performance perovskite quantum dot solar cells enabled by incorporation with dimensionally engineered organic semiconductor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576836/
https://www.ncbi.nlm.nih.gov/pubmed/36251125
http://dx.doi.org/10.1007/s40820-022-00946-x
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