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 §, and Pingyun 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.
