Photosensitization of nanocrystalline TiO2 by self-assembled layers of CdS quantum dots

Abstract

CdS quantum dots can be self-assembled on high surface area nanocrystalline TiO₂ electrodes; spectroscopic and photoelectrochemical studies indicate that the size, and hence the absorption edge, of the CdS particles can be controlled; efficient photosensitization of the TiO₂ electrode by the Q-particles has been achieved.