Use of rose bengal-EDT A system for the generation of electricity in a photogalvanic cell

Department of Chemistry, University College of Science, Sukhadia University, Udaipur-313 001, Rajasthan, India Manuscript received 13 August 2004, revised 23 November 2006, accepted 24 November 2006 Rose bengal has been used as a photosensitizer in photogalvanic cell for solar energy conversion. EDT A was used as an electron donor (reductant). The photopotential and photocurrent generated by this cell were found to be 520 mV and 56 j1A, respectively. The effect of various parameters on the electrical output of the cell has been studied. The current voltage (ἰ- V) characteristics of the cell has also been observed and a tentative mechanism for the generation of photocurrent in the photogalvanic cell has been proposed. Performance of the cell was determined in dark at its power point