Au-CdS Core−Shell Nanocrystals with Controllable Shell Thickness and Photoinduced Charge Separation Property

Abstract

A facile and reproducible approach for preparing Au-CdS core−shell nanocrystals with controllable shell thickness was successfully developed. A depression of the photoluminescence emission of CdS was observed in Au-CdS nanocrystals, demonstrating the photoinduced charge separation and the effective electron transfer from CdS shell to Au core.