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A New Diazabenzo[ k ]fluoranthene‐Based D‐A Conjugated Polymer Donor for Efficient Organic Solar Cells by Shaoheng Xu; Wen Wang; Hongtao Liu; Xinyu Yu; Fei Qin; Hao Luo; Yinhua Zhou; Zhong'an Li is a Materials Science article available to read on EtoBox.
What is A New Diazabenzo[ k ]fluoranthene‐Based D‐A Conjugated Polymer Donor for Efficient Organic Solar Cells about?
## Abstract The development of wide‐bandgap polymer donors having complementary absorption and compatible energy levels with near‐infrared (NIR) absorbing nonfullerene acceptors is highly important for realizing high‐performance organic solar cells (OSCs). Herein, a new thiophene‐fused diazabenzo[k]fluoranthene derivative is successfully synthesized as the electron‐deficient unit to construct an efficient donor–acceptor (D‐A) type alternating copolymer donor, namely, PABF‐Cl, using the chlorinated benzo[1,2‐b:4,5‐b']dithiophene as the copolymerization unit. PABF‐Cl exhibits a wide optical bandgap of 1.93 eV, a deep highest occupied molecular level of −5.36 eV, and efficient hole transport. As a result, OSCs with the best power conversion efficiency of 11.8% are successfully obtained by using PABF‐Cl as the donor to blend with a NIR absorbing BTP‐eC9 acceptor. This work provides a new design of electron‐deficient unit for constructing high‐performance D‐A type polymer donors.
Who reads A New Diazabenzo[ k ]fluoranthene‐Based D‐A Conjugated Polymer Donor for Efficient Organic Solar Cells?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Shaoheng Xu; Wen Wang; Hongtao Liu; Xinyu Yu; Fei Qin; Hao Luo; Yinhua Zhou; Zhong'an Li
- Publisher
- Wiley
- Published
- 2022
- Language
- EN
- Field
- Materials Science (Physical Sciences)