Reddish-brown anthocyanins from Solanum melongena Linn. ( purple eggplant) and Khaya senegalensis ( red-leave Mahogany) were extracted in a mixture of ethanol and water (ratio 4:1 by volume). Solar cells sensitized by the eggplant extracts achieved up to Jsc 3.40 mAcm-2 , Voc 0.350V, ff 0.40 and η 0.48%, while for the red leave Mahogany dye -sensitized cells the values determined were Jsc 1.38mAcm-2, Voc 0.325V ff 0.57 and η 0.36%. Long period stability in energy conversion efficiency of the cells investigated revealed a slight degradation in the of cells efficiencies. Eventhough the results obtained in this work is far below the industrial requirements , the use of natural products as the Sensitizer in dye-sensitized solar cell which enable a faster and simpler production of cheaper and environmentally friendly solar cells has been demonstrated.
