title: A tubular perovskite solar cell: improvement of charge separation at the perovskite/HTM interface.
abstract: Organolead iodide perovskite showing tubular morphology was fabricated on mesoporous TiO2 film via a one-step spin-coating procedure. These perovskite tubes with the external diameter of 1 μm were found to facilitate the charge separation at perovskite/hole-transport material (HTM) interfaces. This engenders a tubular perovskite device showing a higher fill factor over the device with planar perovskite, and improves power conversion efficiency accordingly.
authors.affiliation: Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China. zhesun@tjut.edu.cn xuesong@ustc.edu.cn.
authors.forename: Xueping
authors.initials: X
authors.lastname: Zong
authors.forename: Zhe
authors.initials: Z
authors.lastname: Sun
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Jiang
authors.initials: J
authors.lastname: Wang
authors.forename: Mao
authors.initials: M
authors.lastname: Liang
authors.forename: Song
authors.initials: S
authors.lastname: Xue