PHOTOELECTROCHEMICAL STUDIES ON THE MONOLAYER ASSEMBLIES OF CHLOROPHYLL a ON THE QUANTUM EFFICIENCY OF PHOTOCURRENT GENERATION
نویسندگان
چکیده
Characteristics and quantum efficiencies of photocurrents at monolayer, mixed monolayers, and multilayers of chlorophyll a deposited on semiconducting SnOz electrodes and/or metal electrodes were surveyed. The quantum efficiency of photocurrent depends on the surface concentration of chlorophyll a as well as the thickness of layers. The photocurrent behavior of chlorophyll a multilayers is compared between Sn02 surface and metal electrode surface. The highest efficiency is obtained with a homogeneously mixed monolayer of chlorophyll a-lecithin on SnOz. The usefulness of such monolayer assemblies in the photoelectrochemical studies of chlorophylls is emphasized.
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