title: Solution-processed highly efficient Cu2ZnSnSe4 thin film solar cells by dissolution of elemental Cu, Zn, Sn, and Se powders.
abstract: Solution deposition approaches play an important role in reducing the manufacturing cost of Cu2ZnSnSe4 (CZTSe) thin film solar cells. Here, we present a novel precursor-based solution approach to fabricate highly efficient CZTSe solar cells. In this approach, low-cost elemental Cu, Zn, Sn, and Se powders were simultaneously dissolved in the solution of thioglycolic acid and ethanolamine, forming a homogeneous CZTSe precursor solution to deposit CZTSe nanocrystal thin films. Based on high-quality CZTSe absorber layer, pure selenide CZTSe solar cell with a photoelectric conversion efficiency of 8.02% has been achieved without antireflection coating.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun, Jilin 130022, China.
authors.forename: Yanchun
authors.initials: Y
authors.lastname: Yang
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.forename: Wangen
authors.initials: W
authors.lastname: Zhao
authors.forename: Qingwen
authors.initials: Q
authors.lastname: Tian
authors.forename: Lijian
authors.initials: L
authors.lastname: Huang
authors.forename: Daocheng
authors.initials: D
authors.lastname: Pan
keywords: CZTSe; kesterite; solar cells; solution process; thin film