Abstract
Photovoltage generation using Fluorescein dye in aqueous and aqueous-micellar medium at different pH has been studied in photogalvanic cell. The photopotential and photocurrent generated were maximum in non-ionic micellar medium. The observed solar energy efficiency in non-ionic micellar medium, diethylene glycol hexadecyl ether (Brij-52) was 0.06% and maximum power of the cell was 15.5 μw. The output of the cell was sensitive to surfactant nature. The rate constants of the reactions during photovoltage growth and decay were calculated. The thermodynamic properties of the cell were also discussed. A comparison of the micelle induced photovoltage generation of anionic dye Fluorescein with cationic dye Safranine T in different micellar media and at different pH has been presented.
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