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M. A. Yildirim, A. Ates and A. Astam, “Annealing and Light Effect on Structural, Optical Properties of CuS, CuZnS and ZnS Thin Films Grown by the SILAR Method,” Physica E, Vol. 41, No. 8, 2009, pp. 1365-1372. doi:10.1016/j.physe.2009.04.014

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• TITLE: Copper Zinc Sulfur Compound Solar Cells Fabricated by Spray Pyrolysis Deposition for Solar Cells

  AUTHORS: Noriyuki Kitagawa, Seigo Ito, Duy-Cuong Nguyen, Hitoshi Nishino

  KEYWORDS: Cu2Zn2S3; Spray Pyrolysis; Solar Cells; Superstrate Structure; TiO2

  JOURNAL NAME: Natural Resources, Vol.4 No.1A, March 29, 2013

  ABSTRACT: Cu-Zn-S (CZS) films were deposited by the spray pyrolysis method. As-deposited CZS film showed a low crystallinity. The resistivity of CZS film with Cu/(Cu+Zn) ratio of 50% is around 10-2Ω﹒cm. The CZS film elements using spray Cu-Zn (=1:1) solution with thiourea was confirmed as Cu:Zn:Sn=2:2:3 by ICP-MS and EDX. The band gap of CZS films was varied in the range of 1.8 - 3.5 ev when the Cu/(Cu+Zn)ratio was increased from 0 to 67%; CZS film with Cu/(Cu+Zn)ratio of 50 % showed an wide band gap of 2 eV. The photovoltaic characteristics were confirmed with cell structure of . The best cell was observed at the CZS films with Cu/(Cu+Zn)ratio of 50%; these cells depicted a conversion efficiency of 1.7%.