title: Piezo-Phototronic Effect Enhanced Flexible Solar Cells Based on n-ZnO/p-SnS Core-Shell Nanowire Array.
abstract: The piezo-phototronic effect is about the enhanced separation, transport, and recombination of the photogenerated carriers using the piezoelectric polarization charges present in piezoelectric-semiconductor materials. Here, it is presented that the piezo-phototronic effect can be effectively applied to improve the relative conversion efficiency of a flexible solar cell based on n-ZnO/p-SnS core-shell nanowire array for 37.3% under a moderate vertical pressure. The performance of the solar cell can be effectively enhanced by a gentle bending of the device, showing its potential for application in curly geometries. This study not only adds further understanding about the concept of increasing solar energy conversion efficiency via piezo-phototronic effect, but also demonstrates the great potential of piezo-phototronic effect in the application of large-scale, flexible, and lightweight nanowire array solar cells.
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Laipan
authors.initials: L
authors.lastname: Zhu
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Longfei
authors.initials: L
authors.lastname: Wang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Fei
authors.initials: F
authors.lastname: Xue
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Libo
authors.initials: L
authors.lastname: Chen
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Fu
authors.affiliation: Microsystems and Terahertz Research Center China Academy of Engineering Physics Chengdu Sichuan 610200 China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Feng
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscienceand Technology (NCNST) Beijing 100083 P. R. China.
authors.forename: Tianfeng
authors.initials: T
authors.lastname: Li
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences National Center for Nanoscience and Technology (NCNST) Beijing 100083 P. R. China; School of Material Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA.
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang
keywords: core–shell nanowire arrays; flexible solar cells; n‐ZnO/p‐SnS; piezopotential; piezo‐phototronic effect