title: CuGaO2: A Promising Inorganic Hole-Transporting Material for Highly Efficient and Stable Perovskite Solar Cells.
abstract: The p-type inorganic semiconductor CuGaO2as a hole-transporting layer (HTL) in perovskite solar cells (PSCs) provides higher carrier mobility, better-energy level matching, and superior stability, as well as low-temperature processing technique. Compared to organic HTL, a very competitive PCE of 18.51% with long-term stability is achieved. This indicates that CuGaO2is a promising HTL for efficient and stable PSCs.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China.|Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Huan
authors.initials: H
authors.lastname: Wang
authors.affiliation: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen
keywords: CuGaO2; ambient stability; inorganic hole transporters; perovskite solar cells; power conversion efficiency