Pyrene‐Based Dopant‐Free Hole‐Transport Polymers with Fluorine‐Induced Favorable Molecular Stacking Enable Efficient Perovskite Solar Cells
Abstract: A new class of polymeric hole‐transport materials (HTMs) are explored by inserting a two‐dimensionally conjugated fluoro‐substituted pyrene into thiophene and selenophene polymeric chains. The broad conjugated plane of pyrene and “Lewis soft” selenium atoms not only enhance the π–π stacking of HTM molecules greatly but also render a strong interaction with the perovskite surface, leading to an efficient charge transport/transfer in both the HTM layer and the perovskite/HTM interface. Note that fluorine substitution adjacent to pyrene boosts the stacking of HTMs towards a more favorable face‐on orientation, further facilitating the efficient charge transport. As a result, perovskite solar cells (PSCs) employing PE10 as dopant‐free HTM afford an excellent efficiency of 22.3 % and the dramatically enhanced device longevity, qualifying it among the best PSCs based on dopant‐free HTMs.
- 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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Pyrene‐Based Dopant‐Free Hole‐Transport Polymers with Fluorine‐Induced Favorable Molecular Stacking Enable Efficient Perovskite Solar Cells ; day:12 ; month:04 ; year:2022 ; extent:1
Angewandte Chemie / International edition. International edition ; (12.04.2022) (gesamt 1)
- Creator
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Yao, Zhaoyang
Zhang, Fuguo
He, Lanlan
Bi, Xingqi
Guo, Yaxiao
Guo, Yu
Wang, Linqin
Wan, Xiangjian
Chen, Yongsheng
Sun, Licheng
- DOI
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10.1002/anie.202201847
- URN
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urn:nbn:de:101:1-2022041315083566331473
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:29 AM CEST
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Associated
- Yao, Zhaoyang
- Zhang, Fuguo
- He, Lanlan
- Bi, Xingqi
- Guo, Yaxiao
- Guo, Yu
- Wang, Linqin
- Wan, Xiangjian
- Chen, Yongsheng
- Sun, Licheng
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