Core-Position Controlled CdSe/CdS Heterostructure Nanorod for Efficient Photocatalytic Hydrogen Generation
발표자
()
초록
내용
Colloidal quantum-confined semiconductor nanoparticles has attracted great attention for solar-to-fuel conversion photocatalytic system reaction because of their many advantages, such as size-dependent absorption properties, longer exciton lifetimes, possibility of generating multiple excitons by single photon, and enhanced photo-stability. Among them, CdSe/CdS nanorod heterostructure, which consists of CdSe spherical core in CdS rod, shows slow exciton recombination and highest hydrogen generation activity than core-shell CdSe/CdS hetero-structures. Different reactivity and surface ligand density of each CdS facet enables co-catalyst amount control and therefore affects hydrogen evolution activity. In this work, we systematically investigate CdSe/CdS dot-in-rod core position dependent photocatalytic activity and design efficient structure of CdSe/CdS dot-in-rod structure for photocatalytic hydrogen evolution.