title: Enhanced Electron Collection in Perovskite Solar Cells Employing Thermoelectric NaCo2O4/TiO2Coaxial Nanofibers.
abstract: Thermoelectric NaCo2O4/TiO2coaxial nanofibers are prepared and distributed in the perovskite solar cells. Under illumination, p-type NaCo2O4can convert unwanted heat to thermal voltage, and thus promote the electron extraction and transport with the action of electrostatic force. These advantages collectively contribute to an overall power conversion efficiency improvement of ≈20% (15.14% vs 12.65%).
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.|Key Laboratory of Ecophysics and Department of Physics, School of Science, Shihezi University, Xinjiang, 832003, P. R. China.
authors.forename: Juan
authors.initials: J
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
authors.forename: Chuanbo
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
authors.forename: Haijun
authors.initials: H
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
authors.forename: Hongcai
authors.initials: H
authors.lastname: He
authors.affiliation: State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China. wangninguestc@gmail.com.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China. huiwu@tsinghua.edu.cn.
authors.forename: Hui
authors.initials: H
authors.lastname: Wu
authors.affiliation: Department of Materials and Engineering, University of Washington, Seattle, WA, 98195-2120, USA. gzcao@u.washington.edu.
authors.forename: Guozhong
authors.initials: G
authors.lastname: Cao
keywords: CH3NH3PbI3 perovskite; NaCo2O4; electron transfer; solar cells; thermoelectric