title: Enhanced Efficiency and Stability of Inverted Perovskite Solar Cells Using Highly Crystalline SnO2 Nanocrystals as the Robust Electron-Transporting Layer.
abstract: Highly crystalline SnO2 is demonstrated to serve as a stable and robust electron-transporting layer for high-performance perovskite solar cells. Benefiting from its high crystallinity, the relatively thick SnO2 electron-transporting layer (≈120 nm) provides a respectable electron-transporting property to yield a promising power conversion efficiency (PCE)(18.8%) Over 90% of the initial PCE can be retained after 30 d storage in ambient with ≈70% relative humidity.
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.|Department of Chemistry, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Zonglong
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Yang
authors.initials: Y
authors.lastname: Bai
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.|Department of Chemistry, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Xiao
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Chu-Chen
authors.initials: CC
authors.lastname: Chueh
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Shihe
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.|Department of Chemistry, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen
keywords: SnO2 nanocrystals; air stability; electron-transporting layers; perovskite solar cells