Tunable transition metal complexes as hole transport materials for stable perovskite solar cells

Liangyou Lin; Camilla Lian; Timothy W. Jones; Robert D. Bennett; Blago Mihaylov; Terry Chien-Jen Yang; Jacob Tse-Wei Wang; Bo Chi; Noel W. Duffy; Jinhua Li; Xianbao Wang; Henry J. Snaith; Gregory J. Wilson

doi:10.1039/D1CC00060H

Tunable transition metal complexes as hole transport materials for stable perovskite solar cells†

Liangyou Lin,

*^ab Camilla Lian,^a Timothy W. Jones,^a Robert D. Bennett,^c Blago Mihaylov,^a Terry Chien-Jen Yang,

^a Jacob Tse-Wei Wang,^ad Bo Chi,

^e Noel W. Duffy,

^c Jinhua Li,

^b Xianbao Wang,*^b Henry J. Snaith

^d and Gregory J. Wilson

*^a

Author affiliations

* Corresponding authors

^a CSIRO Energy Centre, Mayfield West, NSW 2304, Australia
E-mail: Liangyou_Lin@hubu.edu.cn, Gregory.Wilson@csiro.au

^b Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, China
E-mail: wxb@hubu.edu.cn

^c CSIRO Clayton, Energy Laboratories, Clayton South Vic, Australia

^d Department of Physics, Condensed Matter Physics, Clarendon Laboratories, University of Oxford, UK

^e School of Materials Science and Engineering Huazhong University of Science & Technology, Wuhan 430074, China

Abstract

Transition metal complexes offer cost-effective alternatives as hole-transport materials (HTMs) in perovskite solar cells. However, the devices suffer from low performance. We boost the power conversion efficiency of devices with transition metal complex HTMs from 2% to above 10% through energy level tuning. We further demonstrate the excellent photostability of the device based on the additive-free HTM.

Chemical Communications

Tunable transition metal complexes as hole transport materials for stable perovskite solar cells†

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