中文摘要：

用巯基丙酸（MPA）作为稳定剂,合成了水溶性的MPA-CdSe量子点,研究反应温度和反应时间对量子点性能的影响.通过紫外可见光谱、荧光光谱、透射电子显微镜（TEM）、XRD等方法分别对其结构、分散性及形貌进行了表征.结果表明：当反应温度为110℃,反应时间为5h时,所合成的MPA-CdSe量子点具有良好的分散性（纳米尺寸约2~3nm）,且具有优异的发光特性,其量子产率可达83%.

英文摘要：

A water-soluble MPA-CdSe quantum dots（QDs）was synthesized using mercaptopropionic acid（MPA）as a stabilizer.The structure,dispersion and morphology of the product were characterized by UV-vis spectra,fluorescence spectra,transmission electron microscopy（TEM）and XRD,respectively.The results showed that the target MPA-CdSe QDs had good dispersion（nano-sized ca.2～3nm）and excellent fluorescence property,and the quantum yield reached 83% when reaction temperature and reaction time were 110℃and 5h,respectively.