Abstract
AbstractTwo types of thionin (Th)‐polymers were prepared and their characteristics in the photogalvanic effects were studied by the use of thin‐layer photocells. One type of the polymers being soluble in methanol was somewhat cross‐linked by Th nuclei, and was cast on a water containing (Fe(II) solution) membrane between SnO2 and Pt electrodes. This membrane type thin‐layer photocell generated larger photo‐induced electricity than the similar thin‐layer photocell composed of the corresponding monomeric Th/Fe(II) solution, the reason of which was considered to be due to the electrostatic effect of cationic sites incorporated into the polymers. Another type of polymers was used as water‐containing (Fe(II) solution) gels, and the thin‐layer photocells composed of them generated a very small photo‐induced electricity due to the strong steric hindrance of entangled strands, which should decrease the possibility of the electrode reaction.
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