Paper Infomation
Microwave-assisted One-pot Synthesis of Yellow Cu: ZnSe/ZnS Quantum Dots Using Selenium Dioxide Containing Copper Impurity
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Author: Ming Liu, Li Li
Abstract: Cu:ZnSe/ZnS core/shell quantum dots exhibiting yellow fluorescent emission were synthesized in aqueous phase via a one-pot microwave irradiation approach, where glutathione (GSH) as stabilizer and selenium dioxide (SeO2) containing Cu as selenium source, respectively. The QDs obtained at the optimal conditions without any post-treatment present high crystallinity, which was confirmed by transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM). The core/shell structure was confirmed by X-ray photoelectron spectra (XPS) and Powder X-ray diffraction (XRD). The binding of GSH on the surface of QDs through thiol ligands was proved by the characterization of Fourier Transform Infrared Spectroscopy (FTIR), suggesting the biocompatibility of the obtained QDs.
Keywords: Cu:ZnSe/ZnS QDs; Microwave Irradiation; Selenium Dioxide
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