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

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

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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 bear-ing 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 adjust-ment of molecular configurations and electronic property of conjugated systems.

Perovskite solar cellCharge transferDonor-acceptor systemsEnergy conversionHole mobility

Weidong Ling、Fei Wu、Wentao Yuan、Linna Zhu、Qianqian Li、Zhen Li

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

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

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

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFoundation of Hubei Scientific CommitteeFoundation of Hubei Scientific CommitteeFundamental Research Funds for the Central UniversitiesKnowledge Innovation Project of Wuhan City

5197316222235006221225042022BAA0152022EHB0102042020kf2058whkxjsj014

2024

10.1002/cjoc.202300658

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(10)