Modification of TiO_2 Microporous Electrode with Quantum-Sized FeS_2 Particles
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Ultrafine FeS<SUB>2</SUB> particles were coated on a TiO<SUB>2</SUB> electrode by low temperature chemical reaction of iron pentacarbonyl with sulfur in xylene. The coating extends both the optical absorption spectrum and the photocurrent action spectrum of TiO<SUB>2</SUB> into visible region by sensitization mechanism. A blue shift observed in both the absorption and photocurrent action spectrum of the FeS<SUB>2</SUB>/TiO<SUB>2</SUB> electrode is explained in terms of quantum size effect.
- Chemistry Letters
Chemistry Letters 1997(2), 149-150, 1997-02
The Chemical Society of Japan