Studies in the photogalvanic effect in mixed reductants system for solar energy conversion and storage: Dextrose and Ethylenediaminetetraacetic acid-Azur A system

A mixture of two reductants (Dextrose and ethylenediamine tetraacetic acid) is used its a mixed reductants with Azur A as photosensitizer in the photogalvanic cell for solar energy conversion and storage with the ann to reduce the cost of construction for commercial viability. The photogeneration of photopotential and photocurrent were 778.0 mV and 55.0 mu A, respectively, whereas maximum power of the cell was 42.79 mu W. The observed power at power point of the cell was 10.87 mu W and conversion efficiency was 0.1045%. The determined fill factor wits 0.1942. The photogalvanic cell so developed can work for 115.0 min in dark where it was irradiated for 175.0 min. A mechanism for the photogeneration of electricity has also been proposed. (C) 2009 Elsevier Ltd. All rights reserved.