Photogalvanic effect studies of mixed dyes systems in view of Solar energy conversion and storage

摘要

Photogalvanic effect was studied in photogalvanic cell containing EDTA as reductant, mixed dyes (combinations of two dyes ) as photosensitizers I.e. EDTA- MB+TB, EDTA- MB+TH, EDTA- MB+AB, EDTA- TB+TH and EDTA- TB+AB systems respectively. The used reductant was Ethylene diamine tetraacetic acid (EDTA) and photosensitizers were Methylene blue (MB), Toluidine blue (TB), Thionine (TH), Azur-B (AB) in different combinations. The photopotential, photocurrent generated, conversion efficiency, power of the cell and performance of the photogalvanic cells were determined. The effects of different parameters on electrical output of the cell were observed and a mechanism has also been proposed for the generation of photocurrent in Photogalvanic cells. The photogalvanic cells (systems) can be used for 34.0, 30.0, 46.0, 42.0 and 120.0 minutes in dark respectively.