Enhanced energy efficiency of photogalvanic cell with mixture of two dyes as photosensitizers in EDTA-DSS system

Photochemistry Laboratory, Department of Chemistry, Jai Narain Vyas University, Jodhpur-342 005, Rajasthan, India E-mail : krg2004@rediffmail.com Manuscript received 22 November 2017, accepted 07 December 2017 In this paper photocurrent and photo voltage generation using mixture of two dyes (Sudan BlackB+Azur-B) in liquid phase photogalvanic cell at different concentrations have been studied. Photogalvanic cells are aqueous phase electrochemical device capable of solar energy conversion and storage using alkaline solution of photosensitizer and reductant. The observed photopotential and photocurrent values in this system were 965.0 mV and 340.0 µA respectively. The conversion efficiency of the system was observed 0.8157% and fill factor determined as 0.2585. The cell performance was observed 110.0 min in dark. The effects of different parameters on the electrical output of the cell were observed and current-voltage (i-V) characteristics of the cell were also studied