Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration.

@article{Subramanian2004CatalysisWT,
  title={Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration.},
  author={Vaidyanathan Subramanian and Eduardo E. Wolf and Prashant V Kamat},
  journal={Journal of the American Chemical Society},
  year={2004},
  volume={126 15},
  pages={4943-50}
}
Photoexcited semiconductor nanoparticles undergo charge equilibration when they are in contact with metal nanoparticles. Such a charge distribution has direct influence in dictating the energetics of the composite by shifting the Fermi level to more negative potentials. The transfer of electrons to Au nanoparticles has now been probed by exciting TiO(2) nanoparticles under steady-state and laser pulse excitation. Equilibration with the C(60)/C(60)(-) redox couple provides a means to determine… CONTINUE READING
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