화학공학소재연구정보센터
Journal of Power Sources, Vol.262, 201-206, 2014
Low cost preparation of Cu2ZnSnS4 and Cu2ZnSn(SxSe1-x)(4) from binary sulfide nanoparticles for solar cell application
A low-cost non-vacuum process for fabrication of Cu2ZnSnS4 (CZTS) and Cu2ZnSn(SxSe1-x)(4) (CZTSSe) films by solvent-free mechanochemical method and doctor blade process is described. First, CuS, ZnS and SnS nanoparticles are synthesized via a facile, solvent-free route, which is low cost and easy to scale-up. Second, the sulfides nanoparticulates precursors are deposited in a thin layer by doctor blade technique. Finally, the dry layers are sintered into CZTS/CZTSSe thin films. Different annealing processes are used, and the influences of incorporation of sulfur/selenium on the CZTS/CZTSSe films have been investigated. These structure, morphology and optical properties of CZTS/CZTSSe films are suitable for thin film solar cell fabrication. (C) 2014 Elsevier B.V. All rights reserved.