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Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride

Vertical phase separation of the donor and the acceptor in organic bulk heterojunction solar cells is crucial to improve the exciton dissociation and charge transport efficiencies. This is because whilst the exciton diffusion length is limited, the organic film must be thick enough to absorb suffici...

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Autores principales: Zhang, Lipei, Xing, Xing, Zheng, Lingling, Chen, Zhijian, Xiao, Lixin, Qu, Bo, Gong, Qihuang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4034005/
https://www.ncbi.nlm.nih.gov/pubmed/24861168
http://dx.doi.org/10.1038/srep05071
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author Zhang, Lipei
Xing, Xing
Zheng, Lingling
Chen, Zhijian
Xiao, Lixin
Qu, Bo
Gong, Qihuang
author_facet Zhang, Lipei
Xing, Xing
Zheng, Lingling
Chen, Zhijian
Xiao, Lixin
Qu, Bo
Gong, Qihuang
author_sort Zhang, Lipei
collection PubMed
description Vertical phase separation of the donor and the acceptor in organic bulk heterojunction solar cells is crucial to improve the exciton dissociation and charge transport efficiencies. This is because whilst the exciton diffusion length is limited, the organic film must be thick enough to absorb sufficient light. However, it is still a challenge to control the phase separation of a binary blend in a bulk heterojunction device architecture. Here we report the realization of vertical phase separation induced by in situ photo-polymerization of the acrylate-based fulleride. The power conversion efficiency of the devices with vertical phase separation increased by 20%. By optimising the device architecture, the power conversion efficiency of the single junction device reached 8.47%. We believe that in situ photo-polymerization of acrylate-based fulleride is a universal and controllable way to realise vertical phase separation in organic blends.
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spelling pubmed-40340052014-05-28 Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride Zhang, Lipei Xing, Xing Zheng, Lingling Chen, Zhijian Xiao, Lixin Qu, Bo Gong, Qihuang Sci Rep Article Vertical phase separation of the donor and the acceptor in organic bulk heterojunction solar cells is crucial to improve the exciton dissociation and charge transport efficiencies. This is because whilst the exciton diffusion length is limited, the organic film must be thick enough to absorb sufficient light. However, it is still a challenge to control the phase separation of a binary blend in a bulk heterojunction device architecture. Here we report the realization of vertical phase separation induced by in situ photo-polymerization of the acrylate-based fulleride. The power conversion efficiency of the devices with vertical phase separation increased by 20%. By optimising the device architecture, the power conversion efficiency of the single junction device reached 8.47%. We believe that in situ photo-polymerization of acrylate-based fulleride is a universal and controllable way to realise vertical phase separation in organic blends. Nature Publishing Group 2014-05-27 /pmc/articles/PMC4034005/ /pubmed/24861168 http://dx.doi.org/10.1038/srep05071 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The images in this article are included in the article's Creative Commons license, unless indicated otherwise in the image credit; if the image is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the image. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Zhang, Lipei
Xing, Xing
Zheng, Lingling
Chen, Zhijian
Xiao, Lixin
Qu, Bo
Gong, Qihuang
Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title_full Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title_fullStr Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title_full_unstemmed Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title_short Vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
title_sort vertical phase separation in bulk heterojunction solar cells formed by in situ polymerization of fulleride
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4034005/
https://www.ncbi.nlm.nih.gov/pubmed/24861168
http://dx.doi.org/10.1038/srep05071
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