Use of mixed dyes in photogalvanic cells for solar energy conversion and storage: EDTA-methylene blue and thionine system

Author:

Gangotri K. M.1,Lal C2

Affiliation:

1. Department of Chemistry, Jai Narain Vyas University, Jodhpur, Rajasthan, India

2. Department of Chemistry, Harcourt Butler Technological Institute, Kanpur, Uttar Pradesh, India

Abstract

The photogalvanic effect was studied in a photogalvanic cell containing Ethylene-diaminetetra-acetic acid as reductant and methylene blue and thionine as photosensitizers. The photopotential and photocurrent generated were 752.0 mV and 90.0 μA, respectively. The observed conversion efficiency was 0.43 per cent and the maximum output of cell was 67.68 μW. The photogalvanic cell can be used for 30 min in the dark. The effects of different parameters on electrical output of the cell were observed, and a mechanism for the generation of photocurrent in photogalvanic cells has also been proposed.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Energy Engineering and Power Technology

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