title: Wire-shaped perovskite solar cell based on TiO2 nanotubes.
abstract: In this work, a wire-shaped perovskite solar cell based on TiO2 nanotube (TNT) arrays is demonstrated for the first time by integrating a perovskite absorber on TNT-coated Ti wire. Anodization was adopted for the conformal growth of TNTs on Ti wire, together with the simultaneous formation of a compact TiO2 layer. A sequential step dipping process is employed to produce a uniform and compact perovskite layer on top of TNTs with conformal coverage as the efficient light absorber. Transparent carbon nanotube film is wrapped around Ti wire as the hole collector and counter electrode. The integrated perovskite solar cell wire by facile fabrication approaches shows a promising future in portable and wearable textile electronics.
authors.affiliation: Energy Research Institute at NTU (ERI@N), Nanyang Technological University, Techno Plaza, 50 Nanyang Drive, 637553, Singapore.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Wang
authors.forename: Sneha A
authors.initials: SA
authors.lastname: Kulkarni
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.forename: Wenjing
authors.initials: W
authors.lastname: Xu
authors.forename: Sudip K
authors.initials: SK
authors.lastname: Batabyal
authors.forename: Sam
authors.initials: S
authors.lastname: Zhang
authors.forename: Anyuan
authors.initials: A
authors.lastname: Cao
authors.forename: Lydia Helena
authors.initials: LH
authors.lastname: Wong