Dye-Sensitized Solar Cell with Natural Dyes Extracted from Indian almond Plant and Cashew Leaf

Abstract

Dye-sensitized solar cells are expected to be used for future clean energy. Recently, most of the researchers in this field use Ruthenium complex as dye-sensitized solar cells. However, Ruthenium is a rare metal. So the cost of the Ruthenium complex is very high. In this paper, dye obtained from ethnic extracts of Indian almond leaf, bark and cashew leaf were use as natural sensitizers for dye-sensitized solar cells. The photo-electrochemical performance of the DSSC shows a conversion efficiency of 0.14% with open-circuit voltage (Voc) of 0.508V, short circuit current density (Jsc) of 0.402mAcm, a d fill-factor (FF) of 0.603 from extracts of green leaf of Indian almond while it’s barks had a conversion efficiency of 0.3939 with open-circuit voltage (Voc) of 0.47609V,short-circuit current density (Jsc) of 0.17mAcm and fill-factor (FF) of 0.399. The conversion efficiency of the DSSCs of extracts from the cashew leaf was 0.06% with open-circuit voltage (Voc) of 0.49V, short-circuit current density (Jsc) of 0.2mAcm and a fill factor (FF) of 0.617