Organic hole transport materials for high performance PbS quantum dot solar cells

Li Zhang; Shunqiang Wang; Yi Shi; Jiazi Xu; Shuang Cao; Zijian Deng; Yong Chen; Junjie Zhang; Xichuan Yang; Zhen Meng; Quli Fan; Bin Sun

doi:10.1039/D4CC01194E

Organic hole transport materials for high performance PbS quantum dot solar cells†

Li Zhang,^a Shunqiang Wang,^a Yi Shi,^a Jiazi Xu,^b Shuang Cao,^a Zijian Deng,^c Yong Chen,^a Junjie Zhang,^a Xichuan Yang,

^c Zhen Meng,*^d Quli Fan

*^a and Bin Sun

*^a

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* Corresponding authors

^a State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Rd., Nanjing 210023, China

^b Tengzhou Huashu Intelligent Manufacturing Academy, Zaozhuang, Shandong, China

^c Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), 2 Linggong Rd., Dalian 116024, China

^d School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China

Abstract

We developed a triazatruxene-based hole transport material (HTM), 3Ka-DBT-3Ka, aiming to enhance band alignment and augment charge generation and collection in devices, as an alternative for 1,2-ethanedithiol (EDT). The PbS CQD solar cells employing 3Ka-DBT-3Ka as the HTM achieve a peak efficiency of 11.4%, surpassing devices employing the conventional PbS-EDT HTM (8.9%).

Chemical Communications

Organic hole transport materials for high performance PbS quantum dot solar cells†

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