title: Solution-Processed One-Dimensional ZnO@CdS Heterojunction toward Efficient Cu2ZnSnS4Solar Cell with Inverted Structure.
abstract: Kesterite Cu2ZnSnS4(CZTS) semiconductor has been demonstrated to be a promising alternative absorber in thin film solar cell in virtue of its earth-abundant, non-toxic element, suitable optical and electrical properties. Herein, a low-cost and non-toxic method that based on the thermal decomposition and reaction of metal-thiourea-oxygen sol-gel complexes to synthesize CZTS thin film was developed. The low-dimensional ZnO@CdS heterojunction nano-arrays coupling with the as-prepared CZTS thin film were employed to fabricate a novel solar cell with inverted structure. The vertically aligned nanowires (NWs) allow facilitating the charge carrier collection/separation/transfer with large interface areas. By optimizing the parameters including the annealing temperature of CZTS absorber, the thickness of CdS buffer layer and the morphology of ZnO NWs, an open-circuit voltage (VOC) as high as 589 mV was obtained by such solar cell with inverted structure. The all-solution-processed technic allows the realization of CZTS solar cell with extremely low cost.
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.
authors.forename: Rongrong
authors.initials: R
authors.lastname: Chen
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.|Institute of New Energy Technology, College of Information and Technology, Jinan University, Guangzhou, 510632, China.
authors.forename: Jiandong
authors.initials: J
authors.lastname: Fan
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.
authors.forename: Chong
authors.initials: C
authors.lastname: Liu
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.
authors.forename: Yanjiao
authors.initials: Y
authors.lastname: Shen
authors.affiliation: Institute of Photovoltaics, College of Physics Science and Technology, Hebei University, Baoding, 071002, China.|Institute of New Energy Technology, College of Information and Technology, Jinan University, Guangzhou, 510632, China.
authors.forename: Yaohua
authors.initials: Y
authors.lastname: Mai