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Photogalvanic cell; heterocyclic dyes; azur A; azur B; azur C; NaLS; ascorbic acid; fill factor; conversion efficiency

The photogalvanic effect has been studied in three systems using photogalvanic cells and NaLS-ascorbic acid-azur A, NaLS-ascorbic acid-azur B, NaLS-ascorbic acid-azur C systems. The photopotential and photocurrent generated by these systems are 7700, 9710, 623·0 mV and 160·0, 185·0, 145·0 (μA respectively. The effects of different parameters on the electrical outputs of the cell have been observed and current-voltage characteristics of the cell studied, and a mechanism has been proposed for the generation of photocurrent in photogalvanic cells. The conversion efficiencies for azur A, azur B and azur C are 0·5461, 0·9646 and 0·4567% and storage capacity 110, 135 and 95 min respectively.

K R Genwa¹ Anju Chouhan¹

1. Department of Chemistry, Jai Narain Vyas University, Jodhpur - 342 001, India

Published

November 2004

Manuscript received

3 March 2004

Manuscript revised

12 September 2004