摘要
采用1-十八烯作为高温反应溶剂,利用氯化铕和磷酸三丁酯制备铕前驱体。分别采用正三辛基膦和碲粉制备的碲前驱体,以及油胺和二水乙酸镉制备的镉前驱体,在200℃合成Eu掺杂Cd Te量子点。实验发现随着反应溶液中Eu的含量上升,Cd Te量子点的荧光峰发生显著红移,但Eu的含量过高则会导致量子点的荧光强度下降。
Using 1-octadecene as high-temperature reaction solvent, Eu-doped CdTe quantum dots were synthesized. The europium precursor was prepared by dissolving europium chloride into tributyl phosphate. Cadmium precursor solution was prepared by dissolving cadmium acetate into oleylamine, and Te precursor solution was prepared by dissolving tellurium powder into trioctylphosphine. CdTe and CdTe：Eu quantum dot were obtained at 200 ℃. The experiment results indicate that the fluorescence peaks of the quantum dots show obvious red shift with the increasing of europium content, but extra europium will lead to the decrease of fluorescence intensity.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2016年第3期305-309,共5页
Chinese Journal of Luminescence
基金
国家自然科学基金(61377027)
福建省自然科学基金(2013J01233)资助项目
关键词
Cd
Te量子点
铕
掺杂
光学性能
CdTe quantum dot europium doping optical properties
