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 TiOxlayer 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 TiOxlayer. The results were compared with the cells fabricated using the conventional spin-coated active layers.
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