Copper Zinc Sulfur Compound Solar Cells Fabricated by Spray Pyrolysis Deposition for Solar Cells - Natural Resources

NR > Vol.4 No.1, March 2013

Natural Resources

Volume 4, Issue 1 (March 2013)

ISSN Print: 2158-706X ISSN Online: 2158-7086

Google-based Impact Factor: 0.89 Citations h5-index & Ranking

Copper Zinc Sulfur Compound Solar Cells Fabricated by Spray Pyrolysis Deposition for Solar Cells ()

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Download as PDF (Size: 1009KB) PP. 142-145

DOI: 10.4236/nr.2013.41A018 5,152 Downloads 9,217 Views Citations

Author(s)

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

Affiliation(s)

Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan.
Energy Technology Laboratories, Osaka Gas Co., Ltd., Osaka, Japan.

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%.

KEYWORDS

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

Share and Cite:

N. Kitagawa, S. Ito, D. Nguyen and H. Nishino, "Copper Zinc Sulfur Compound Solar Cells Fabricated by Spray Pyrolysis Deposition for Solar Cells," Natural Resources, Vol. 4 No. 1A, 2013, pp. 142-145. doi: 10.4236/nr.2013.41A018.

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