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Journal of Nanomaterials
Volume 2013, Article ID 320375, 5 pages
http://dx.doi.org/10.1155/2013/320375
Research Article

Fabrication and Characterization of Thin Film Solar Cell Made from CuIn0.75Ga0.25S2 Wurtzite Nanoparticles

Fengyan Zhang,1 Chivin Sun,2 Cyril Bajracharya,2 Rene G. Rodriguez,2 and Joshua J. Pak2

1Institute for Solar Energy, Xiamen University, Xiamen, Fujian, China
2Department of Chemistry, Idaho State University, Pocatello, ID 83209, USA

Received 20 February 2013; Revised 17 April 2013; Accepted 7 May 2013

Academic Editor: Weidong Zhou

Copyright © 2013 Fengyan Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

CuIn0.75Ga0.25S2 (CIGS) thin film solar cells have been successfully fabricated using CIGS Wurtzite phase nanoparticles for the first time. The structure of the cell is Glass/Mo/CIGS/CdS/ZnO/ZnO:Al/Ag. The light absorption layer is made from CIGS Wurtzite phase nanoparticles that are formed from single-source precursors through a microwave irradiation. The Wurtzite phase nanoparticles were converted to Chalcopyrite phase film through a single-step annealing process in the presence of argon and sulfur at 450°C. The solar cell made from Wurtzite phase nanoparticles showed 1.6% efficiency and 0.42 fill factor.