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hycha520

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[½»Á÷] Manipulation of Charge Transfer Across Semiconductor Interface. ÒÑÓÐ4È˲ÎÓë

Manipulation of Charge Transfer Across Semiconductor Interface.
A Criterion That Cannot Be Ignored in Photocatalyst Design

J. Phys. Chem. Lett. 2012, 3, 663−672

ABSTRACT: The Perspective focuses on photoinduced electron transfer
between semiconductor−metal and semiconductor−semiconductor nanostructures
and factors that influence the rate of electron transfer at the interface. The
storage and discharge properties of metal nanoparticles play an important role in
dictating the photocatalytic performance of semiconductor−metal composite
assemblies. Both electron and hole transfer across the interface with comparable
rates are important in maintaining high photocatalytic efficiency and stability of
the semiconductor assemblies. Coupled semiconductors of well-matched band
energies are convenient to improve charge separation. Furthermore, semiconductor
and metal nanoparticles assembled on reduced graphene oxide sheets
offer new ways to design multifunctional catalyst mat. The fundamental understanding of charge-transfer processes is important
in the future design of light-harvesting assemblies.

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