title: Thermal evaporation and characterization of Sb2Se3 thin film for substrate Sb2Se3/CdS solar cells.
abstract: Sb2Se3 is a promising absorber material for photovoltaic cells because of its optimum band gap, strong optical absorption, simple phase and composition, and earth-abundant and nontoxic constituents. However, this material is rarely explored for photovoltaic application. Here we report Sb2Se3 solar cells fabricated from thermal evaporation. The rationale to choose thermal evaporation for Sb2Se3 film deposition was first discussed, followed by detailed characterization of Sb2Se3 film deposited onto FTO with different substrate temperatures. We then studied the optical absorption, photosensitivity, and band position of Sb2Se3 film, and finally a prototype photovoltaic device FTO/Sb2Se3/CdS/ZnO/ZnO:Al/Au was constructed, achieving an encouraging 2.1% solar conversion efficiency.
authors.affiliation: Wuhan National Laboratory for Optoelectronics (WNLO) and ‡School of Optical and Electronic Information, Huazhong University of Science and Technology , Wuhan 430074, Hubei, P. R. China.
authors.forename: Xinsheng
authors.initials: X
authors.lastname: Liu
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Miao
authors.initials: M
authors.lastname: Luo
authors.forename: Meiying
authors.initials: M
authors.lastname: Leng
authors.forename: Zhe
authors.initials: Z
authors.lastname: Xia
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhou
authors.forename: Sikai
authors.initials: S
authors.lastname: Qin
authors.forename: Ding-Jiang
authors.initials: DJ
authors.lastname: Xue
authors.forename: Lu
authors.initials: L
authors.lastname: Lv
authors.forename: Han
authors.initials: H
authors.lastname: Huang
authors.forename: Dongmei
authors.initials: D
authors.lastname: Niu
authors.forename: Jiang
authors.initials: J
authors.lastname: Tang