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Citation: TAO You-Rong, WU Xing-Cai. CuInS₂/ZnS Quantum Dots[J]. University Chemistry, ;2017, 32(11): 51-56. doi: 10.3866/PKU.DXHX201706014 shu

CuInS₂/ZnS Quantum Dots

National Experimental Teaching Demonstrating Center, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China

A research-type comprehensive experiment was introduced:a facile microwavehydrothermal synthesis and characterization of CuInS₂/ZnS composite quantum dots (QDs). In the experiment, water-soluble CuInS₂/ZnS composite QDs were synthesized by a two-step microwavehydrothermal method using reagents of Cu²⁺, In³⁺, Zn²⁺ and S^2- with glutathione as the stabilizer. The structure of the prepared composite QDs was characterized by X-ray diffraction (XRD) and transmittance electronic microscopy (TEM), and optical properties were characterized by UV-Visible absorption spectroscopy, photoluminescence spectroscopy, fluorescence lifetime and fluorescence imaging. The effects of temperature, time and the component in the precursors on the fluorescent properties were explored. Scientific research methods and thinking ability of students are trained by designing and accomplishing the experiment.
- Research-type comprehensive experiment,
- Microwave-hydrothermal synthesis,
- CuInS₂/ZnS QDs,
- Photoluminescence,
- Fluorescent life
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CuInS₂/ZnS Quantum Dots