【摘要】 用巯基乙酸作稳定剂在水相中合成了CdSe纳米颗粒.聚4-乙烯基吡啶季铵盐(PVPNI)通过静电作用与CdSe纳米颗粒复合形成了纳米复合材料.该复合材料通过红外光谱数据(IR)、电感耦合等离子发射光谱(ICP-AES)、透射电镜(TEM)等方法进行了表征,并通过紫外可见吸收光谱(UV-Vis)和荧光光谱(PL)对其光学性质进行了研究.结果表明,复合材料的形成,改善了纳米CdSe的分散性,并提高了纳米CdSe的荧光强度.更多还原

【Abstract】 A stable CdSe nanoparticle hydrosol was prepared upon addition of mercaptoacetic acid as a stabilizer.A nanocomposite was formed based on electrostatic interactions by poly(4 vinylpyridine) quaternary ammonium with CdSe nanoparticle.The formation of nanocomposite was confirmed and characterized by infrared spectrum (IR),inductively coupled plasma atomic emission spectroscopy (ICP AES),transmission electron microscopy (TEM),UV Vis spectrophotomery (UV Vis),photoluminescence (PL) spectrophotometry,etc.The dispersive property and luminescence intensity of CdSe nanocrystals were improved and increased by the formation of the composite.更多还原