Generation of Photocurrent using Rhodamine B Dye and visible Light

Abstract

The photo galvanic effect was studied in a system of photogalvanic cell, containing
rhodamine B as photosensitizer, EDTA as reductant, and sodium lauryl sulphate as surfactant.
The electrical outputs of this cell were 210 mV and 70μA respectively. The storage capacity
of the cell was 20 min in dark after 55 min of illumination. The effect of different parameters
on electrical output of this system were studied such as; pH, temperature, light intensity,
concentration of dye, concentration of EDTA, and concentration of NaLS. Also, a mechanism
of generation of photocurrent in this cell has been proposed.