title: Nano-structured CuO-Cu2O Complex Thin Film for Application in CH3NH3PbI3 Perovskite Solar Cells.
abstract: Nano-structured CuO-Cu2O complex thin film-based perovskite solar cells were fabricated on an indium tin oxide (ITO)-coated glass and studied. Copper (Cu) thin films with a purity of 99.995 % were deposited on an ITO-coated glass by magnetron reactive sputtering. To optimize the properties of the nano-structured CuO-Cu2O complex thin films, the deposited Cu thin films were thermally oxidized at various temperatures from 300 to 400 °C. A CH3NH3PbI3 perovskite absorber was fabricated on top of CuO-Cu2O complex thin film by a one-step spin-coating process with a toluene washing treatment. Following optimization, the maximum power conversion efficiency (PCE) exceeded 8.1 %. Therefore, the low-cost, solution-processed, stable nano-structured CuO-Cu2O complex thin film can be used as an alternative hole transport layer (HTL) in industrially produced perovskite solar cells.
authors.affiliation: Department of Electro-Optical Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao E. Road, Taipei, 106, Taiwan. ocean@ntut.edu.tw.
authors.forename: Lung-Chieh
authors.initials: LC
authors.lastname: Chen
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, Taoyuan, 32001, Taiwan.
authors.forename: Cheng-Chiang
authors.initials: CC
authors.lastname: Chen
authors.affiliation: Department of Electro-Optical Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao E. Road, Taipei, 106, Taiwan.
authors.forename: Kai-Chieh
authors.initials: KC
authors.lastname: Liang
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, Taoyuan, 32001, Taiwan.|Department of Optics and Photonics, National Central University, Taoyuan, 32001, Taiwan.
authors.forename: Sheng Hsiung
authors.initials: SH
authors.lastname: Chang
authors.affiliation: Department of Electro-Optical Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao E. Road, Taipei, 106, Taiwan.
authors.forename: Zhong-Liang
authors.initials: ZL
authors.lastname: Tseng
authors.affiliation: Institute of Chemistry, Academia Sinica, Taipei, 11529, Taiwan.
authors.forename: Shih-Chieh
authors.initials: SC
authors.lastname: Yeh
authors.affiliation: Institute of Chemistry, Academia Sinica, Taipei, 11529, Taiwan.
authors.forename: Chin-Ti
authors.initials: CT
authors.lastname: Chen
authors.affiliation: Institute of Chemistry, Academia Sinica, Taipei, 11529, Taiwan.
authors.forename: Wen-Ti
authors.initials: WT
authors.lastname: Wu
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, Taoyuan, 32001, Taiwan.
authors.forename: Chun-Guey
authors.initials: CG
authors.lastname: Wu
keywords: CH3NH3PbI3 perovskite; CuO-Cu2O complex-based; Nano-structured