ZnO/CdS量子点的制备及其荧光性能  

Synthesis and fluorescence properties of ZnO/CdS quantum dots

作　　者：王立同[1] 刘洁[1] 余锡宾[1] 栾宝平[1] 周永勤[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2011年第1期52-56,共5页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海市重点领域创新专项(BCA901)

摘　　要：研究了用液相法的方法可控合成ZnO/CdS量子点,并通过调节前驱体的比例来制备不同光色的量子点,使ZnO/CdS量子点能够光色可调,成功地得到激发主峰在450-460 nm,发射主峰在600 nm左右的ZnO/CdS量子点,和蓝光复合可以得到暖白光,大大提高白光LEDs的显色性,这说明该量子点在暖白光发光二级管中具有潜在的应用价值.ZnO/CdS quantum dots（QDs） were synthesized via sol-gel route and different colors of quantum dots were prepared by the adjusting the ratio of various precursors,These ZnO / CdS quantum dots′ color can be continuously adjusted and its excitation peak is at 450-460 nm,emission peak is at about 600 nm,the fluorescence can composite with blue light and get the warm white light and greatly improve the color of white LEDs,indicating that they have potential applications for warm white light emitting diodes.

关 键 词：量子点 ZNO CDS LED 光色可调 

分 类 号：O614.24[理学—无机化学]