Optical and electrical properties of organic-inorganic composite system
SYNTHETIC METALS(1997)
Abstract
Anionic phthalocyanine sodium hydrogallium 4,4',4 ",4"'-tetrasulfonated phthalocyanine(GaTsPc) was used to modify the surface of a size-quantized particulate TiO2 photoelectrode fabricated by electrostatic attraction. The photovoltaic features and interfacial electron transfer of the electrodes were studied by a photoelectrochemical method and surface photovoltage spectroscopy. The results indicate that the light absorption of phthalocyanine monomer makes more contribution to the photovoltaic response in the TiO2/GaTsPc composite electrode in spite of obvious aggregation occurring in composite electrode.
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Key words
self-assembly using surface chemistry,semiconductor/semiconductor interface,organic semiconductors based on conjugated molecules,solar cell
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