发光学报2017，Vol.38Issue(6)：715-720,6.DOI:10.3788/fgxb20173806.0715
异丙醇对油溶性CdSe团簇量子点荧光的影响
Effect of Isopropyl Alcohol on The Fluorescence of Colloidal CdSe Quantum Dot Clusters
摘要
Abstract
Using colloidal chemical method, the CdSe QDs clusters were synthesized in oleic acid-paraffin system.The quantum dot clusters were modified by isopropyl alcohol, and the fluorescence spectroscopy (PL) and ultraviolet (UV) absorption spectra were studied by using the curve fitting method.Finally, the inner relationship of the changing of optical properties of CdSe QDs clusters was discussed by analyzing the AFM images and Fourier transform infrared spectroscopy of the samples.With the increase of the concentration of isopropanol, the fluorescence peak of QDs appears blue-shift of 11 nm and the blue-shift curve change stepwise.The relative fluorescence intensity increases first and then decreases, and the fluctuation amplitude can reach the maximum of 1 000 a.u..The first and the second absorption peak of QDs appear red-shift with the increase of the concentration of isopropanol, and the largest red-shift is up to 12 nm.关键词
异丙醇/CdSe量子点/荧光峰/蓝移/表面修饰Key words
isopropyl alcohol/CdSe QDs/fluorescence peak/blue-shift/surface modification分类
数理科学引用本文复制引用
黄兆岭,白忠臣,郝礼才,廖莎,秦水介..异丙醇对油溶性CdSe团簇量子点荧光的影响[J].发光学报,2017,38(6):715-720,6.基金项目
国家国际科技合作专项(2014DFA00670) （2014DFA00670）
贵州省国际科技合作项目(黔科合外G字[2011]7001)资助 Supported by Program for International S&T Cooperation Projects of The Ministry of Science and Technology of China (2014DFA00670) （黔科合外G字[2011]7001）
International Science and Technology Cooperation Project of Guizhou Province(QKHG[2011]7001) （QKHG[2011]7001）
