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Copper Zinc Sulfur Compound Solar Cells Fabricated by Spray Pyrolysis Deposition for Solar Cells
Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
Energy Technology Laboratories, Osaka Gas Co., Ltd., Osaka, Japan
- 1 Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
- 2 Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
- 3 Department of Electric Engineering and Computer Sciences, University of Hyogo, Hyogo, Japan
- 4 Energy Technology Laboratories, Osaka Gas Co., Ltd., Osaka, Japan
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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 -2 Ω﹒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%.
KeywordsCu<sub>2</sub>Zn<sub>2</sub>S<sub>3</sub>Spray PyrolysisSolar CellsSuperstrate StructureTiO<sub>2</sub>
- P. Jackson, D. Hariskos, E. Lotter, S. Paetel, R. Wuerz, R. Menner, W. Wischmann and M. Powalla, “New World Record Efficiency for Cu(In,Ga)Se2 Thin-Film Solar Cells beyond 20%,” Progress in Photovoltaics: Research and Applications, Vol. 19, No. 7, 2011, pp. 894-897. doi:10.1002/pip.1078
- D. Aaron, R. Barkhouse, O. Gunawan, T. Gokmen, T. K. Todorov and D. B. Mitzi, “Device Characteristics of a 10.1% Hydrazine-Processed Cu2ZnSn(Se,S)4 Solar Cell Photovoltaic,” Progress in Photovoltaics: Research and Applications, Vol. 20, No. 1, 2012, pp. 6-10.
- J. Huang, Y. Yang, S. Xue, B. Yang, S. Liu and J. Shen, “Photoluminescence and Electroluminescence of ZnS:Cu Nanocryttals in Polymeric Networks,” Applied Physics Letters, Vol. 70, No. 18, 1997, pp. 2335-2337. doi:10.1063/1.118866
- W. Q. Peng, G. W. Cong, S. C. Qu and Z. G. Wang, “Synthesis and Photoluminescence of ZnS:Cu Nanoparticles,” Optical Materials, Vol. 29, No. 2-3, 2006, pp. 313317. doi:10.1016/j.optmat.2005.10.003
- 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
- C. C. Uhuegbu, E. B. Babatunde and C. O. Oluwafemi, “The Study of Copper Zinc Sulphide (CuZnS2) Thin Films,” Turkish Journal of Physics, Vol. 32, 2008 pp. 39-47.
- C. C. Uhuegbu and E. B. Babatunde, “Spectral Analysis of Copper Zinc Sulphide Ternary Thin Film Grown by Solution Growth Technique,” American Journal of Scientific and Industrial Research, Vol. 1, No. 3, 2010, pp. 397-400. doi:10.5251/ajsir.2010.1.3.397.400
- T. Ryo, D.-C. Nguyen, M. Nakagiri, N. Toyoda, H. Matsuyoshi and S. Ito, “Characterization of Superstrate Type CuInS2 Solar Cells Deposited by Spray Pyrolysis Method,” Thin Solid Films, Vol. 519, No. 21, 2011, pp. 7184-7188. doi:10.1016/j.tsf.2010.12.176
- J. Gao, J. M. Luther, O. E. Semonin, R. J. Ellingson, A. J. Nozik and M. C. Beard, “Quantum Dot Size Dependent J-V Characteristics in Heterojunction ZnO/PbS Quantum Dot Solar Cells,” Nano Letters, Vol. 11, No. 3, 2011, pp. 1002-1008. doi:10.1021/nl103814g