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Revealing the cryst...
Revealing the crystalline packing structure of Y6 in the active layer of organic solar cells: the critical role of solvent additives
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- Xia, Xinxin (author)
- Chinese Univ Hong Kong, Peoples R China
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- Mei, Le (author)
- City Univ Hong Kong, Peoples R China
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- He, Chengliang (author)
- Zhejiang Univ, Peoples R China
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- Chen, Zeng (author)
- Zhejiang Univ, Peoples R China
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- Yao, Nannan, 1992- (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Qin, Minchao (author)
- Chinese Univ Hong Kong, Peoples R China
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- Sun, Rui (author)
- Wuhan Univ, Peoples R China
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- Zhang, Zhenzhen (author)
- Chinese Acad Sci, Peoples R China
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- Pan, Yuyu (author)
- City Univ Hong Kong, Peoples R China
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- Xiao, Yiqun (author)
- Chinese Univ Hong Kong, Peoples R China
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- Lin, Yuze (author)
- Chinese Acad Sci, Peoples R China
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- Min, Jie (author)
- Wuhan Univ, Peoples R China
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- Zhang, Fengling (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Zhu, Haiming (author)
- Zhejiang Univ, Peoples R China
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- Bredas, Jean-Luc (author)
- Univ Arizona, AZ 85721 USA
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- Chen, Hongzheng (author)
- Zhejiang Univ, Peoples R China
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- Chen, Xian-Kai (author)
- City Univ Hong Kong, Peoples R China
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- Lu, Xinhui (author)
- Chinese Univ Hong Kong, Peoples R China
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(creator_code:org_t)
- ROYAL SOC CHEMISTRY, 2023
- 2023
- English.
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In: Journal of Materials Chemistry A. - : ROYAL SOC CHEMISTRY. - 2050-7488 .- 2050-7496. ; 11:40, s. 21895-21907
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The bulk heterojunction (BHJ) morphology of photovoltaic materials is crucial to the fundamental optoelectronic properties of organic solar cells (OSCs). However, in the photoactive layer, the intrinsic crystalline packing structure of Y6, currently the hallmark molecule among Y-series non-fullerene acceptors (NFAs), has not been unambiguously determined. Here, employing grazing-incidence wide-angle X-ray scattering (GIWAXS), we managed to uncover the intrinsic crystalline packing structure of Y6 in the BHJ active layer of OSCs, which is found to be different from its single-crystal structure reported previously. Moreover, we find that solvent additive 1-chloronaphthalene (CN) can induce highly ordered packing of Y6 in BHJ thin films. With the help of atomistic molecular dynamics simulations, it is revealed that pi-pi interactions generally exist between naphthalene derivatives and IC terminals of Y6 analogues, which would essentially improve their long-range ordering. Our work reveals the intrinsic crystalline packing structure of Y6 in the BHJ active layer as well as its crystallization mechanism in thin films, thus providing direct correlations between this crystalline packing and the device characteristics and photophysical properties.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Xia, Xinxin
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Mei, Le
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He, Chengliang
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Chen, Zeng
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Yao, Nannan, 199 ...
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Qin, Minchao
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show more...
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Sun, Rui
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Zhang, Zhenzhen
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Pan, Yuyu
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Xiao, Yiqun
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Lin, Yuze
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Min, Jie
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Zhang, Fengling
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Zhu, Haiming
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Bredas, Jean-Luc
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Chen, Hongzheng
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Chen, Xian-Kai
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Lu, Xinhui
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
- Articles in the publication
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Journal of Mater ...
- By the university
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Linköping University