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Role of Photosensitizer for Generation of Electrical Energy in Photogalvanic Cell

Mahesh Chandra and R. C. Meena

The photovoltages and photocurrents in photogalvanic cell containing a dye rose bengal and oxalic acid as reducing agent have been determined. The photo-outputs with oxalic acid are higher than rose bengal and glucose system. The efficiency of the rose bengal-oxalic acid photogalvanic cell has been estimated to be 0.981 %. The photopotentials and photocurrent generated, conversion efficiency, power of the cell and cell performance of the photogalvanic cells were determined. The effects of different parameters on electrical output of the cell were observed .A mechanism has also been proposed for the generation of the photocurrent in photogalvanic cell.