Monocopper Doping in Cd-In-S Supertetrahedral Nanocluster via Two-step Strategy and Enhanced Photoelectric Response
Tao Wu*†‡（吴涛）,Qian Zhang† (张骞), ,Yang Hou‡,Le Wang‡,Chengyu Mao‡,Shou-Tian Zheng§,Xianhui Bu§, andPingyun Feng*‡ （冯萍云）
†College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
‡Department of Chemistry, University of California, Riverside, California 92521, United States
§Department of Chemistry and Biochemistry, California State University, Long Beach, California 90840, United States
J. Am. Chem. Soc.2013,135,10250–10253.
We apply a two-step strategy to realize ordered distribution of multiple components in one nanocluster (NC) with a crystallographically ordered core/shell structure. A coreless supertetrahedral chalcogenide Cd-In-S cluster is prepared, and then a copper ion is inserted at its void core site through a diffusion process to form a Cu-Cd-In-S quaternary NC. This intriguing molecular cluster with mono-copper core and Cd-In shell exhibits enhanced visible-light-responsive optical and photoelectric properties compared to the parent NC.
