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12.
Role of Rose Bengal–Glucose System for Generation of Energy in a
Photogalvanic Cell
Mahesh Chandra*and R.C. Meena
*Department of Chemistry,Deshbandhu College,New Dehli-110019
E-mail:
dr.mahesh10@yahoo.co.in
Department of Chemistry, Jai Narain Vyas University, Jodhpur
(Rajasthan)-342 005, E-mail: rcmeena007@rediffmail.com
Abstract:
Rose
Bengal has been used as a photosensitizer in photogalvanic cell
for solar energy conversion. Glucose was used as an electron
donor. The photopotential and photocurrent generated by this
cell were 750 mV and 130 μA, respectively. The effects of
various parameters like pH, light intensity, diffusion length,
reductant concentration, dye concentration, etc. on the
electrical output of the cell has been studied. The current
voltage (i–V) characteristic of the cell has also been observed
and a tentative Mechanism for the generation of photocurrent has
been proposed. Performance of the cell was determined in dark at
its power point.
KEYWORDS: - Photogalvanic cell, Photopotential, Rose Bengal,
Glucose, Photocurrent.
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