西北师范大学学报（自然科学版）Issue(6)：59-63,70,6.
硫化镉量子点的可控制备及荧光性能研究
Controllable synthesis of cadmium sulfide quantum dots(QDs)and its photoluminescence property
摘要
Abstract
Cadmium sulfide quantum dots (CdS QDs ) are synthesized via solvothermal method using Cd(NO3 )2·4H 2 O and sulfur as the precursors and oleylamine as solvent and surfactant.The influnces of the temperature as well as the reaction time on the size of the QDs are also investigated.The crystalline structure and morphology of the products are characterized by powder X-ray diffraction (XRD ) and transmission electron microscopy (TEM).The results show that the as-synthesized CdS QDs possess the properties of high crystallinity,monodispersity,as well as uniform size.The variation of size of CdS QDs with the change of the reaction temperature and the reaction times is investigated by ultraviolet-visible spectrum (UV-Vis)and the photoluminescence (PL)spectrum.The results show that with the increasing of the temperature and the prolongation of the reaction time, the obvious red-shift is observed. It suggests that the size of quantum dots can be adjusted by changing of reaction temperature and reaction time.关键词
硫化镉/量子点/溶剂热法/荧光性能/可控合成Key words
CdS/quantum dots (QDs)/solvothermal synthesis/fluorescence property/controllable synthesis分类
化学化工引用本文复制引用
佘厚德,康燕,万新磊,魏娟娟..硫化镉量子点的可控制备及荧光性能研究[J].西北师范大学学报（自然科学版）,2014,(6):59-63,70,6.基金项目
国家自然科学基金资助项目(21261021) （21261021）
生态环境相关高分子材料教育部重点实验室基金资助项目 （）
