Synthesis of Aqueous CdTe/CdS/ZnS Core/shell/shell Quantum Dots by a Chemical Aerosol Flow Method
作者： Fangqiong Tang , Linlin Li , Hongbo Li , Xinglu Huang , Dong Chen
DOI: 10.1007/S11671-009-9464-X
关键词: Rhodamine 6G 、 Crystallography 、 Quantum yield 、 Nanochemistry 、 Transmission electron microscopy 、 Shell (structure) 、 High-resolution transmission electron microscopy 、 Quantum dot 、 Materials science 、 Analytical chemistry 、 Photoluminescence
摘要: This work described a continuous method to synthesize CdTe/CdS/ZnS core/shell/shell quantum dots. In an integrated system by flawlessly combining the chemical aerosol flow working at high temperature (200–300°C) generate CdTe/CdS intermediate products and additional heat-up setup relatively low overcoat ZnS shells, multishell structures were realized. The as-synthesized dots are characterized photoluminescence spectra, X-ray diffraction (XRD), energy-dispersive spectra (EDS), transmission electron microscopy (TEM), high-resolution (HRTEM). Fluorescence XRD results confirm that obtained have structure. It shows highest yield above 45% when compared rhodamine 6G. QDs more stable via oxidation experiment H2O2.
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