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In Situ Optical Spectroscopy Demonstrates the Effect of Solvent Additive in the Formation of All-Polymer Solar Cells
[Image: see text] 1-Chloronaphthalene (CN) has been a common solvent additive in both fullerene- and nonfullerene-based organic solar cells. In spite of this, its working mechanism is seldom investigated, in particular, during the drying process of bulk heterojunctions composed of a donor:acceptor m...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9791685/ https://www.ncbi.nlm.nih.gov/pubmed/36512444 http://dx.doi.org/10.1021/acs.jpclett.2c03397 |
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author | Liu, Yanfeng Fan, Qunping Liu, Heng Jalan, Ishita Jin, Yingzhi Stam, Jan van Moons, Ellen Wang, Ergang Lu, Xinhui Inganäs, Olle Zhang, Fengling |
author_facet | Liu, Yanfeng Fan, Qunping Liu, Heng Jalan, Ishita Jin, Yingzhi Stam, Jan van Moons, Ellen Wang, Ergang Lu, Xinhui Inganäs, Olle Zhang, Fengling |
author_sort | Liu, Yanfeng |
collection | PubMed |
description | [Image: see text] 1-Chloronaphthalene (CN) has been a common solvent additive in both fullerene- and nonfullerene-based organic solar cells. In spite of this, its working mechanism is seldom investigated, in particular, during the drying process of bulk heterojunctions composed of a donor:acceptor mixture. In this work, the role of CN in all-polymer solar cells is investigated by in situ spectroscopies and ex situ characterization of blade-coated PBDB-T:PF5-Y5 blends. Our results suggest that the added CN promotes self-aggregation of polymer donor PBDB-T during the drying process of the blend film, resulting in enhanced crystallinity and hole mobility, which contribute to the increased fill factor and improved performance of PBDB-T:PF5-Y5 solar cells. Besides, the nonradiative energy loss of the corresponding device is also reduced by the addition of CN, corresponding to a slightly increased open-circuit voltage. Overall, our observations deepen our understanding of the drying dynamics, which may guide further development of all-polymer solar cells. |
format | Online Article Text |
id | pubmed-9791685 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-97916852022-12-27 In Situ Optical Spectroscopy Demonstrates the Effect of Solvent Additive in the Formation of All-Polymer Solar Cells Liu, Yanfeng Fan, Qunping Liu, Heng Jalan, Ishita Jin, Yingzhi Stam, Jan van Moons, Ellen Wang, Ergang Lu, Xinhui Inganäs, Olle Zhang, Fengling J Phys Chem Lett [Image: see text] 1-Chloronaphthalene (CN) has been a common solvent additive in both fullerene- and nonfullerene-based organic solar cells. In spite of this, its working mechanism is seldom investigated, in particular, during the drying process of bulk heterojunctions composed of a donor:acceptor mixture. In this work, the role of CN in all-polymer solar cells is investigated by in situ spectroscopies and ex situ characterization of blade-coated PBDB-T:PF5-Y5 blends. Our results suggest that the added CN promotes self-aggregation of polymer donor PBDB-T during the drying process of the blend film, resulting in enhanced crystallinity and hole mobility, which contribute to the increased fill factor and improved performance of PBDB-T:PF5-Y5 solar cells. Besides, the nonradiative energy loss of the corresponding device is also reduced by the addition of CN, corresponding to a slightly increased open-circuit voltage. Overall, our observations deepen our understanding of the drying dynamics, which may guide further development of all-polymer solar cells. American Chemical Society 2022-12-13 2022-12-22 /pmc/articles/PMC9791685/ /pubmed/36512444 http://dx.doi.org/10.1021/acs.jpclett.2c03397 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Liu, Yanfeng Fan, Qunping Liu, Heng Jalan, Ishita Jin, Yingzhi Stam, Jan van Moons, Ellen Wang, Ergang Lu, Xinhui Inganäs, Olle Zhang, Fengling In Situ Optical Spectroscopy Demonstrates the Effect of Solvent Additive in the Formation of All-Polymer Solar Cells |
title | In Situ Optical Spectroscopy Demonstrates the Effect
of Solvent Additive in the Formation of All-Polymer Solar Cells |
title_full | In Situ Optical Spectroscopy Demonstrates the Effect
of Solvent Additive in the Formation of All-Polymer Solar Cells |
title_fullStr | In Situ Optical Spectroscopy Demonstrates the Effect
of Solvent Additive in the Formation of All-Polymer Solar Cells |
title_full_unstemmed | In Situ Optical Spectroscopy Demonstrates the Effect
of Solvent Additive in the Formation of All-Polymer Solar Cells |
title_short | In Situ Optical Spectroscopy Demonstrates the Effect
of Solvent Additive in the Formation of All-Polymer Solar Cells |
title_sort | in situ optical spectroscopy demonstrates the effect
of solvent additive in the formation of all-polymer solar cells |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9791685/ https://www.ncbi.nlm.nih.gov/pubmed/36512444 http://dx.doi.org/10.1021/acs.jpclett.2c03397 |
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