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Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells

Minimizing energy loss is of critical importance in the pursuit of attaining high-performance organic solar cells. Interestingly, reorganization energy plays a crucial role in photoelectric conversion processes. However, the understanding of the relationship between reorganization energy and energy...

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Autores principales: Shi, Yanan, Chang, Yilin, Lu, Kun, Chen, Zhihao, Zhang, Jianqi, Yan, Yangjun, Qiu, Dingding, Liu, Yanan, Adil, Muhammad Abdullah, Ma, Wei, Hao, Xiaotao, Zhu, Lingyun, Wei, Zhixiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9174259/
https://www.ncbi.nlm.nih.gov/pubmed/35672325
http://dx.doi.org/10.1038/s41467-022-30927-y
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author Shi, Yanan
Chang, Yilin
Lu, Kun
Chen, Zhihao
Zhang, Jianqi
Yan, Yangjun
Qiu, Dingding
Liu, Yanan
Adil, Muhammad Abdullah
Ma, Wei
Hao, Xiaotao
Zhu, Lingyun
Wei, Zhixiang
author_facet Shi, Yanan
Chang, Yilin
Lu, Kun
Chen, Zhihao
Zhang, Jianqi
Yan, Yangjun
Qiu, Dingding
Liu, Yanan
Adil, Muhammad Abdullah
Ma, Wei
Hao, Xiaotao
Zhu, Lingyun
Wei, Zhixiang
author_sort Shi, Yanan
collection PubMed
description Minimizing energy loss is of critical importance in the pursuit of attaining high-performance organic solar cells. Interestingly, reorganization energy plays a crucial role in photoelectric conversion processes. However, the understanding of the relationship between reorganization energy and energy losses has rarely been studied. Here, two acceptors, Qx-1 and Qx-2, were developed. The reorganization energies of these two acceptors during photoelectric conversion processes are substantially smaller than the conventional Y6 acceptor, which is beneficial for improving the exciton lifetime and diffusion length, promoting charge transport, and reducing the energy loss originating from exciton dissociation and non-radiative recombination. So, a high efficiency of 18.2% with high open circuit voltage above 0.93 V in the PM6:Qx-2 blend, accompanies a significantly reduced energy loss of 0.48 eV. This work underlines the importance of the reorganization energy in achieving small energy losses and paves a way to obtain high-performance organic solar cells.
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spelling pubmed-91742592022-06-09 Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells Shi, Yanan Chang, Yilin Lu, Kun Chen, Zhihao Zhang, Jianqi Yan, Yangjun Qiu, Dingding Liu, Yanan Adil, Muhammad Abdullah Ma, Wei Hao, Xiaotao Zhu, Lingyun Wei, Zhixiang Nat Commun Article Minimizing energy loss is of critical importance in the pursuit of attaining high-performance organic solar cells. Interestingly, reorganization energy plays a crucial role in photoelectric conversion processes. However, the understanding of the relationship between reorganization energy and energy losses has rarely been studied. Here, two acceptors, Qx-1 and Qx-2, were developed. The reorganization energies of these two acceptors during photoelectric conversion processes are substantially smaller than the conventional Y6 acceptor, which is beneficial for improving the exciton lifetime and diffusion length, promoting charge transport, and reducing the energy loss originating from exciton dissociation and non-radiative recombination. So, a high efficiency of 18.2% with high open circuit voltage above 0.93 V in the PM6:Qx-2 blend, accompanies a significantly reduced energy loss of 0.48 eV. This work underlines the importance of the reorganization energy in achieving small energy losses and paves a way to obtain high-performance organic solar cells. Nature Publishing Group UK 2022-06-07 /pmc/articles/PMC9174259/ /pubmed/35672325 http://dx.doi.org/10.1038/s41467-022-30927-y Text en © The Author(s) 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
Shi, Yanan
Chang, Yilin
Lu, Kun
Chen, Zhihao
Zhang, Jianqi
Yan, Yangjun
Qiu, Dingding
Liu, Yanan
Adil, Muhammad Abdullah
Ma, Wei
Hao, Xiaotao
Zhu, Lingyun
Wei, Zhixiang
Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title_full Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title_fullStr Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title_full_unstemmed Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title_short Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
title_sort small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9174259/
https://www.ncbi.nlm.nih.gov/pubmed/35672325
http://dx.doi.org/10.1038/s41467-022-30927-y
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