Studies on photogalvanic effect in systems containing toluidine blue

The photovoltages and photocurrents in photogalvanic cells containing a dye toluidine blue (Tb +) and reducing agents, Fe(II), EDTA, triethanolamine and triethylamine have been determined. The photo-outputs with EDTA or amines as reducing agents are higher than when Fe(II) is the reducing agent. The...

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Bibliographic Details
Published in:Solar energy 1983, Vol.30 (1), p.39-43
Main Authors: Murthy, A.S.N., Reddy, K.S.
Format: Article
Language:English
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Summary:The photovoltages and photocurrents in photogalvanic cells containing a dye toluidine blue (Tb +) and reducing agents, Fe(II), EDTA, triethanolamine and triethylamine have been determined. The photo-outputs with EDTA or amines as reducing agents are higher than when Fe(II) is the reducing agent. The efficiency of the EDTA-Tb + photogalvanic cell has been estimated to be ∼ 0.0022%. The electrochemical behaviour of toluidine blue in presence of all the reducing agents has been examined by cyclic voltametry. Plausible mechanisms of photogalvanic action have been discussed.
ISSN:0038-092X
1471-1257
DOI:10.1016/0038-092X(83)90004-X