A SIMPLE AND EFFECTIVE ROUTE FOR PREPARATION OF POLYSTYRENE(PS)NANOSPHERE CONTAINING CDSE QUANTUM DOTS BY ELECTROSPINNING
Fluorescent CdSe quantum dots(QDs)were dispersed into polystyrene(PS)nanospheres by electrospinning a CdSe/PS blent solution.In the process,assembled quantum dots did not take place,quantum dots were uniformly dispersed in the polymer matrix which were either single-colored or double-colored nanospheres.The morphology and distribution of composite nanospheres were characterized by field emission scanning electron microscopy(FESEM)and transmission electron microscopy(TEM).The diameter of the composite nanospheres is reduced from 1150nm of a pure PS nanosphere to about 570nm with the increased amount of CdSe QDs.The photoluminescence(PL)spectral analysis indicates that the peak position of CdSe QDs composite nanospheres in either solid state or water is identical to that of CdSe/PS blending solution,at about 587nm and 611nm.especially the interference possibility of two peaks in double-colored system is avoided.And the position is still unchangeable when they are left for at least one month,indicating the stable photoluminescent property of the fluorescent composite nanospheres.
Polystyrene (PS) CdSe QDs fluorescent composite nanosphere electrospinning
Song Yan Wang Fang-Fei
Department of Materials Science and Engineering,Jilin institute of Chemical Technology,Chengde Street,Jilin,China
国际会议
吉林
英文
213-215
2018-06-23（万方平台首次上网日期，不代表论文的发表时间）