STUDIES ON STORAGE PHOTOELECTROCHEMICAL CELL CONSISTING OF PHENAZINE DYE EDTA AND DIFFERENT REDOX COUPLES

A new type of photoelectrochemical cell has been developed using phenazine dye and EDTA aqueous solution and aqueous solution of different redox couples separated by a Pyrex sintered glass membrane (porosity G-4). The different phenazine dyes used are phenosafranin, safranin-O, safranin-T, and neutral red. An interesting observation is that the growth of maximum photovoltage takes 15-25 min, whereas the decay to the original dark voltage requires two to three days. Cell characteristics such as open-circuit voltage, short-circuit current, fill factor, power efficiency, and solar energy efficiency have been determined.