Near-Infrared Colloidal Quantum Dots for Efficient and Durable Photoelectrochemical Solar-Driven Hydrogen Production

A new hybrid photoelectrochemical photoanode is developed to generate H(2) from water. The anode is composed of a TiO(2) mesoporous frame functionalized by colloidal core@shell quantum dots (QDs) followed by CdS and ZnS capping layers. Saturated photocurrent density as high as 11.2 mA cm(-2) in a solar-cell-driven photoelectrochemical system using near-infrared QDs is obtained.