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Heteroheptacene-bas...
Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells
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- Luo, Zhenghui (författare)
- Shenzhen Univ, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China
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- Ma, Ruijie (författare)
- Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
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- Yu, Jianwei (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Liu, Heng (författare)
- Chinese Univ Hong Kong, Peoples R China
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- Liu, Tao (författare)
- Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
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- Ni, Fan (författare)
- Shenzhen Univ, Peoples R China
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- Hu, Jiahao (författare)
- Shenzhen Univ, Peoples R China
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- Zou, Yang (författare)
- Shenzhen Univ, Peoples R China
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- Zeng, Anping (författare)
- Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China
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- Su, Chun-Jen (författare)
- Synchrotron Radiat Res Ctr, Peoples R China
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- Jeng, U-Ser (författare)
- Synchrotron Radiat Res Ctr, Peoples R China; Tsing Hua 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,Elektroniska och fotoniska material,Tekniska fakulteten
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- Yang, Chuluo (författare)
- Shenzhen Univ, Peoples R China
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- Yan, He (författare)
- Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China; Hong Kong Univ Sci & Technol HKUST, Peoples R China
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(creator_code:org_t)
- 2022-04-27
- 2022
- Engelska.
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Ingår i: NATIONAL SCIENCE REVIEW. - : Oxford University Press. - 2095-5138 .- 2053-714X. ; 9:7
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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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
- Rationally utilizing and developing synthetic units is of particular significance for the design of high-performance non-fullerene small-molecule acceptors (SMAs). Here, a thieno[3,2-b]pyrrole synthetic unit was employed to develop a set of SMAs (ThPy1, ThPy2, ThPy3 and ThPy4) by changing the number or the position of the pyrrole ring in the central core based on a standard SMA of IT-4Cl, compared to which the four thieno[3,2-b]pyrrole-based acceptors exhibit bathochromic absorption and upshifted frontier orbital energy level due to the strong electron-donating ability of pyrrole. As a result, the polymer solar cells (PSCs) of the four thieno[3,2-b]pyrrole-based acceptors yield higher open-circuit voltage and lower energy loss relative to those of the IT-4Cl-based device. What is more, the ThPy3-based device achieves a power conversion efficiency (PCE) (15.3%) and an outstanding fill factor (FF) (0.771) that are superior to the IT-4Cl-based device (PCE = 12.6%, FF = 0.758). The ThPy4-based device realizes the lowest energy loss and the smallest optical band gap, and the ternary PSC device based on PM6:BTP-eC9:ThPy4 exhibits a PCE of 18.43% and a FF of 0.802. Overall, this work sheds light on the great potential of thieno[3,2-b]pyrrole-based SMAs in realizing low energy loss and high PCE. Four heteroheptacene-based acceptors using thieno[3,2-b]pyrrole building block were developed for the first time, and all the four acceptors-based devices realized high performance and low energy loss.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- thieno[3; 2-b]pyrrole; small-molecule acceptors; energy loss; intramolecular non-covalent interactions; polymer solar cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Luo, Zhenghui
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Ma, Ruijie
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Yu, Jianwei
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Liu, Heng
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Liu, Tao
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Ni, Fan
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Hu, Jiahao
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Zou, Yang
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Zeng, Anping
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Su, Chun-Jen
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Jeng, U-Ser
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Lu, Xinhui
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Gao, Feng
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Yang, Chuluo
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Yan, He
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Annan fysik
- Artiklar i publikationen
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NATIONAL SCIENCE ...
- Av lärosätet
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Linköpings universitet