On the Conformation of Dimeric Acceptors and Their Polymer Solar Cells with Efficiency over 18 %
Abstract: The determination of molecular conformations of oligomeric acceptors (OAs) and their impact on molecular packing are crucial for understanding the photovoltaic performance of their resulting polymer solar cells (PSCs) but have not been well studied yet. Herein, we synthesized two dimeric acceptor materials, DIBP3F‐Se and DIBP3F‐S, which bridged two segments of Y6‐derivatives by selenophene and thiophene, respectively. Theoretical simulation and experimental 1D and 2D NMR spectroscopic studies prove that both dimers exhibit O‐shaped conformations other than S‐ or U‐shaped counter‐ones. Notably, this O‐shaped conformation is likely governed by a distinctive “conformational lock” mechanism, arising from the intensified intramolecular π–π interactions among their two terminal groups within the dimers. PSCs based on DIBP3F‐Se deliver a maximum efficiency of 18.09 %, outperforming DIBP3F‐S‐based cells (16.11 %) and ranking among the highest efficiencies for OA‐based PSCs. This work demonstrates a facile method to obtain OA conformations and highlights the potential of dimeric acceptors for high‐performance PSCs.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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On the Conformation of Dimeric Acceptors and Their Polymer Solar Cells with Efficiency over 18 % ; day:18 ; month:07 ; year:2023 ; extent:11
Angewandte Chemie / International edition. International edition ; (18.07.2023) (gesamt 11)
- Creator
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Wu, Jingnan
Ling, Zhaoheng
Franco, Leandro R.
Jeong, Sang Young
Genene, Zewdneh
Mena, Josué
Chen, Si
Chen, Cailing
Araujo, C. Moyses
Marchiori, Cleber F. N.
Kimpel, Joost
Chang, Xiaoming
Isikgor, Furkan H.
Chen, Qiaonan
Faber, Hendrik
Han, Yu
Laquai, Frédéric
Zhang, Maojie
Woo, Han Young
Yu, Donghong
Anthopoulos, Thomas D.
Wang, Ergang
- DOI
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10.1002/anie.202302888
- URN
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urn:nbn:de:101:1-2023071815240292581172
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:52 AM CEST
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Associated
- Wu, Jingnan
- Ling, Zhaoheng
- Franco, Leandro R.
- Jeong, Sang Young
- Genene, Zewdneh
- Mena, Josué
- Chen, Si
- Chen, Cailing
- Araujo, C. Moyses
- Marchiori, Cleber F. N.
- Kimpel, Joost
- Chang, Xiaoming
- Isikgor, Furkan H.
- Chen, Qiaonan
- Faber, Hendrik
- Han, Yu
- Laquai, Frédéric
- Zhang, Maojie
- Woo, Han Young
- Yu, Donghong
- Anthopoulos, Thomas D.
- Wang, Ergang
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