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

Chem Commun (Camb). 2021 Feb 25;57(16):2093-2096. doi: 10.1039/d1cc00060h.

Authors

Affiliations

¹ CSIRO Energy Centre, Mayfield West, NSW 2304, Australia. Liangyou_Lin@hubu.edu.cn Gregory.Wilson@csiro.au and 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, 430062, China. wxb@hubu.edu.cn.
² CSIRO Energy Centre, Mayfield West, NSW 2304, Australia. Liangyou_Lin@hubu.edu.cn Gregory.Wilson@csiro.au.
³ CSIRO Clayton, Energy Laboratories, Clayton South Vic, 3169, Australia.
⁴ CSIRO Energy Centre, Mayfield West, NSW 2304, Australia. Liangyou_Lin@hubu.edu.cn Gregory.Wilson@csiro.au and Department of Physics, Condensed Matter Physics, Clarendon Laboratories, University of Oxford, OX1 3EU, UK.
⁵ School of Materials Science and Engineering Huazhong University of Science & Technology, Wuhan 430074, China.
⁶ 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, 430062, China. wxb@hubu.edu.cn.
⁷ Department of Physics, Condensed Matter Physics, Clarendon Laboratories, University of Oxford, OX1 3EU, UK.

PMID: 33514992
DOI: 10.1039/d1cc00060h

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.