Volume 42, Issue 10 pp. 1100-1106
Comprehensive Report

Hole-Transporting Materials with Rational Combination of Pyridine and Dibenzo[a,c]phenazine as Electron Acceptor for Dopant-Free Perovskite Solar Cells

Weidong Ling

Weidong Ling

Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Department of Chemistry, Wuhan University, Wuhan, Hubei, 430072 China

These authors contributed equally to this work.

Dedicated to the 130th Anniversary of Wuhan University.

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Fei Wu

Fei Wu

Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy, Southwest University, Chongqing, 400715 China

These authors contributed equally to this work.

Dedicated to the 130th Anniversary of Wuhan University.

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Wentao Yuan

Wentao Yuan

Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Department of Chemistry, Wuhan University, Wuhan, Hubei, 430072 China

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Linna Zhu

Corresponding Author

Linna Zhu

Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy, Southwest University, Chongqing, 400715 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Qianqian Li

Corresponding Author

Qianqian Li

Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Department of Chemistry, Wuhan University, Wuhan, Hubei, 430072 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Zhen Li

Corresponding Author

Zhen Li

Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Department of Chemistry, Wuhan University, Wuhan, Hubei, 430072 China

TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, 430072 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
First published: 05 February 2024
Citations: 1

Comprehensive Summary

Perovskite solar cells (PSCs) have been proven to be a promising option for photovoltaic conversion. With the aim to achieve efficient and stable PSCs, it is essential to explore dopant-free hole-transporting materials (HTMs) with high hole mobility. Herein, HTMs bearing electron donor (D)-electron acceptor (A)-electron donor (D) structures have been constructed with strong intramolecular charge transfer (ICT) effect, based on rational combination of dibenzo[a,c]phenazine and pyridine as electronic acceptors and anchoring groups to perovskite layer. Accordingly, high hole mobility (7.31 × 10–5 cm2·V–1·s–1) and photoelectric conversion efficiency (20.45%) have been achieved by dopant-free DPyP-based PSC. It afforded an efficient way to design HTMs with high hole mobility by adjustment of molecular configurations and electronic property of conjugated systems. image

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