Plant Based Dye for Dye Sensitized Solar Cells (DSSC)

Fresh leaves of indigofera tinctoria species which are available in tropical countries
is used as the sensitizer in the Dye Sensitized Solar Cells (DSSC). The indigo dye is
extracted by hot water extraction method and fermentation method. The optimum
temperature of extracting the indigo dye is determined by extracting the indigo dye at
4 different temperatures using the hot water extraction method and it is compared to
the indigo dye extracted using the fermentation method. One of the issue faced is that
due to high temperature, light intensity and inadequate rainfall, the leaves of the
indigofera tinctoria species used will be affected and this could reduce the yield of
the indigo dye extracted.