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International Journal of Photoenergy
Volume 2013 (2013), Article ID 202467, 5 pages
http://dx.doi.org/10.1155/2013/202467
Performance of Bulk Heterojunction Solar Cells Fabricated Using Spray-Deposited Poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]/[6,6]-Phenyl C71 Butyric Acid Methyl Ester Blend Active Layers
1Department of Electrical Engineering, INHA University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
2Department of Electrical Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0392, Japan
Received 22 October 2012; Accepted 18 December 2012
Academic Editor: Ho Chang
Copyright © 2013 Im-Jun No 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
The Poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothia diazole-4,7-diyl-2,5-thiophenediyl]/[6,6]-phenyl C71 butyric acid methyl ester blend active layers were prepared by spray deposition method with different preparative conditions. The active layers were prepared with and without TiO layer in order to study the property changes. The absorption and surface morphology of the active layers were analyzed using UV-visible spectral and atomic force microscopic studies. The photovoltaic cells were fabricated using the spray-coated active layers with and without TiO layer. The results were compared with the cells fabricated using the conventional spin-coated active layers.