Multicolored luminescent CdS nanocrystals

来源期刊：中国有色金属学报(英文版)2007年第6期

论文作者：张军 狄晓威 刘志亮 徐刚 徐盛明 周兴平

文章页码：1367 - 1372

Key words：CdS nanocrystals; reverse micelle; multicolor emission; luminescence modulation

Abstract: The observation of efficient blue, green, orange and red luminescence from CdS nanocrystals made by using a reverse micelle method was reported. The blue luminescence about 480 nm is attributed to the radiative recombination of electron-hole pairs. The red luminescence around 650 nm is due to the radiative recombination of the exciton trapped in the nanocrystal surface defect states. The combination of different portion of band-edge emission and surface trap state emission results in green and orange luminescence for the nanocrystals. The CdS nanocrystals with efficient multicolored luminescence may find potential application in full color displays and biolabelings.

基金信息：the National Natural Science Foundation of China
Inner Mongolia University, China