Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 91, Issue 13, Pages 1199-1201Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2007.04.012
Keywords
Cu2ZnSnS4; solar cell; sol-gel method; precursor sulfurization
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CU2ZnSnS4 (CZTS) thin films were prepared by sulfurizing precursors deposited by the sot-gel method. Copper (II) acetate monohydrate, zinc (II) acetate dihydrate and tin (II) chloride dihydrate were used as the starting materials of the sol-gel method, and 2methoxyethanol and monoethanolamine were used as the solvent and the stabilizer, respectively. The solution was spin coated on soda lime glass substrates and dried at 300 degrees C. The coated glasses were sulfurized by annealing at 500 degrees C in a hydrogen sulfide-containing atmosphere. The annealed thin films showed X-ray diffraction peaks attributed to the single phase CZTS. The chemical composition of the films was almost stoichiometric and the band gap energy was 1.49 eV at room temperature. (C) 2007 Elsevier B.V. All rights reserved.
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