Photosensitized charge injection into TiO2 particles as studied by microwave absorption

作者: Richard W. Fessenden , Prashant V. Kamat

DOI: 10.1016/0009-2614(86)80020-3

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摘要: Abstract The fluorescence of rose bengal is quenched with 96% efficiency when this dye adsorbed on TiO2 particles. Microwave measurements suspensions these dye-coated particles have shown large absorption signals the suspension irradiated pulses 532 nm light from a laser. microwave attributed to mobile charge carriers injected into excited singlet state dye. observed rise time signal indicates no intermediate surface greater than 2 ns lifetime. Various characteristics are compared those single crystals.

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