Role of reductant and photosensitizer in solar energy conversion and storage: ascorbic acid-eiosin system

Department of Chemistry, Jai Narain Vyas University. Jodhpur-324 005. India E-mail : rcmeena007 @rediffmail.com Manuscript received 17 April 2001. revised 2 September 2003, accepted /8 February 2004 Photogalvanic effects was studied in photogalvanic cell containing ascorbic acid as reductant and eiosin as photosensitizer. The photopotential and photocurrent generated were 860.0 mV and 90.0 µA, respectively. The observed convrsion efficiency was 0.4474% and the maximum power of cell was 46.5 J.1 W. The storage capacity of the cell as 36.0 min in dark. The effect of different parameters on electrical output of the cell was observed and a mechanism has also been proposed for the generation of photocurrent in photogalvanic cells