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在水热条件下,以水热法合成的Zn Se微米球为牺牲模板,成功制备出球形ZnSe/CdSe核壳结构纳米复合材料。讨论反应物ZnSe和Cd(NO3)2的不同摩尔比对最终产物形貌和结构的影响,并借助XRD,SEM,TEM和PL对Zn Se/Cd Se核壳结构纳米复合材料的性能进行表征。结果表明:当n(ZnSe):n(Cd(NO3)2大于1:1时可以制备出核壳结构,n(ZnSe):n(Cd(NO3)2)等于1时为实心球结构。PL光谱表明:Zn Se/Cd Se核壳结构纳米复合材料具有高的PL发射强度,且当n(ZnSe):n(Cd(NO3)2为1:0.5时发光性能最好。
Under hydrothermal conditions, spherical ZnSe / CdSe core-shell nanocomposites were successfully prepared by hydrothermally synthesized Zn Se microspheres as the sacrificial template. The effects of different molar ratios of reactants ZnSe and Cd (NO3) 2 on morphology and structure of the final product were discussed. The properties of ZnSe / Cd Se core-shell nanocomposites were characterized by XRD, SEM, TEM and PL. The results show that the core-shell structure can be prepared when the concentration of n (ZnSe): n (Cd (NO3) 2> 1: 1, and the solid spherical structure is obtained when n (ZnSe): n (Cd (NO3) The spectra show that the Zn Se / Cd Se core-shell nanocomposites have high PL emission intensity, and the luminescent properties are best when the concentration of n (ZnSe): n (Cd (NO3) 2 is 1: 0.5.