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A Comparative study on the Performance of Photogalvanic cells with mixed Surfactant for Solar Energy conversion and storage: D-Xylose- Methylene Blue systems

Author Affiliations

  • 1 Solar Energy Laboratory, Department of Chemistry, Faculty of Science, Jai Narain Vyas University, Jodhpur, Rajasthan-342001, INDIA

Res. J. Recent Sci., Volume 2, Issue (12), Pages 19-27, December,2 (2013)

Abstract

The comparative performance of photogalvanic cells were studied for conversion and storage of solar energy by using (NaLS+Tween-80) and (NaLS+ CTAB) as different mixed surfactant with D-Xylose as reductant and Methylene blue as photosensitizer in the different mixed surfactants systems. The observed conversion efficiencies for (NaLS+Tween-80) and (NaLS+ CTAB) with D-Xylose and Methylene blue are 0.5313% and 0.4326% respectively. The Maximum photopotential are 870 mV and 825 mV where as the maximum photocurrent is 240 mA and 220 mA respectively. The Short circuit current or photocurrent at equilibrilium is 210 mA and 190 mA respectively. The fill factors 0.3024 and 0.2870 are experimentally observed at the power point of the photogalvanic cells where the absolute value is 1.0. The photogalvanic cells so developed can work for 100 and 90 min. in dark if it is irradiated for 150 and 160 min. respectively. The exhaustive efforts have still scope to increase the efficiency and economical viability by selecting many more combinations of two different surfactants and choosing proper reductant and photosensitizer (dye) in the photogalvanic cells for solar energy conversion and storage.

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