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Fine-Tuning Energy ...
Fine-Tuning Energy Levels via Asymmetric End Groups Enables Polymer Solar Cells with Efficiencies over 17%
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- Luo, Zhenghui (författare)
- Hong Kong Univ Sci and Technol HKUST, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China
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- Ma, Ruijie (författare)
- Hong Kong Univ Sci and Technol HKUST, Peoples R China
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- Liu, Tao (författare)
- Hong Kong Univ Sci and Technol, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China;
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- Yu, Jianwei (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Xiao, Yiqun (författare)
- Chinese Univ Hong Kong, Peoples R China
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- Sun, Rui (författare)
- Wuhan Univ, Peoples R China
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- Xie, Guanshui (författare)
- Guilin Univ Elect Technol, Peoples R China
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- Yuan, Jun (författare)
- Cent South Univ, Peoples R China
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- Chen, Yuzhong (författare)
- Hong Kong Univ Sci and Technol, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China
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- Chen, Kai (författare)
- Hong Kong Univ Sci and Technol, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China
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- Chai, Gaoda (författare)
- Hong Kong Univ Sci and Technol, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China
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- Sun, Huiliang (författare)
- Hong Kong Univ Sci and Technol, Peoples R China
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- Min, Jie (författare)
- Wuhan Univ, Peoples R China
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- Zhang, Jian (författare)
- Guilin Univ Elect Technol, Peoples R China
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- Zou, Yingping (författare)
- Cent South Univ, Peoples R China
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- Yang, Chuluo (författare)
- Shenzhen Univ, Peoples R China
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- Lu, Xinhui (författare)
- Chinese Univ Hong Kong, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Yan, He (författare)
- Hong Kong Univ Sci and Technol, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China; Hong Kong Univ Sci and Technol HKUST, Peoples R China; South China Univ Technol, Peoples R China
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(creator_code:org_t)
- CELL PRESS, 2020
- 2020
- Engelska.
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Ingår i: Joule. - : CELL PRESS. - 2542-4351. ; 4:6, s. 1236-1247
- Relaterad länk:
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http://www.cell.com/...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Generally, it is important to fine-tune the energy levels of donor and acceptor materials in the field of polymer solar cell (PSCs) to achieve a minimal highest occupied molecular orbital (HOMO) energy offset, which yet is still sufficient for charge separation. Based on the high-performance small-molecule acceptor (SMA) of BTP-4F, we modified the end groups of BTP-4F from IC-2F to CPTCN-Cl. It was found that when both end groups were substituted by CPTCN-Cl, the energy level upshift was too large that caused unfavorable energetic alignment, thus poor device performance. By using the strategy of asymmetric end groups, we were able to achieve near optimal energy level match, resulting in higher open-circuit voltage (V-OC) and power conversion efficiency (PCE) compared with those given by the PM6:BTP-4F system. Our strategy can be useful and potentially applied to othermaterial systems for maximizing efficiency of non-fullerene PSCs.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)
Publikations- och innehållstyp
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Luo, Zhenghui
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Ma, Ruijie
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Liu, Tao
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Yu, Jianwei
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Xiao, Yiqun
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Sun, Rui
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visa fler...
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Xie, Guanshui
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Yuan, Jun
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Chen, Yuzhong
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Chen, Kai
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Chai, Gaoda
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Sun, Huiliang
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Min, Jie
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Zhang, Jian
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Zou, Yingping
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Yang, Chuluo
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Lu, Xinhui
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Gao, Feng
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Yan, He
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- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Naturresurstekni ...
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och Energisystem
- Artiklar i publikationen
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Joule
- Av lärosätet
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Linköpings universitet