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论文摘要

CaGd3F11:Eu3+超小纳米晶的制备及其发光性质研究

Synthesis and luminescence of Ultrasmall CaGd3F11:Eu3+ nanocrystals

作者:田婧(宜宾学院化学与化工学院);罗华锋(宜宾学院化学与化工学院);王强(宜宾学院化学与化工学院)

Author:TIAN Jing(College of Chemistry and Chemical Engineering, Yibin University);LUO Hua-Feng(College of Chemistry and Chemical Engineering, Yibin University);WANG Qiang(College of Chemistry and Chemical Engineering, Yibin University)

收稿日期:2016-07-17          年卷(期)页码:2018,55(2):367-370

期刊名称:四川大学学报: 自然科学版

Journal Name:Journal of Sichuan University (Natural Science Edition)

关键字:纳米晶;Eu3+;掺杂;荧光

Key words:Nanocrystals; Eu3+; Doping; Fluorescence

基金项目:市自然科学基金

中文摘要

以无水氯化钙、稀土硝酸盐、正辛醇为原料,以正辛胺和油酸为表面活性剂,通过控制不同的反应条件,采用溶剂热法制备出形貌均匀的CaGd3F11:Eu3+纳米发光材料。用X射线衍射(XRD)、透射电子显微镜(TEM)和荧光分光光度计对合成的纳米晶的粒径、形貌和光学性质进行了表征。结果表明CaGd3F11纳米晶的结晶度良好且尺寸均匀(约5 nm),其作为基质材料,掺杂Eu3+表现出很强的荧光发射。

英文摘要

CaGd3F11:Eu3+ nanocrystals with the morphologies of nanoparticles were prepared by octylamine and oleic acid as capping ligands, and anhydrous calcium chloride, rare earth nitrate, n-octanol as the raw materials with solvothermal method. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and fluorescence spectrophotometer. The results indicate that CaGd3F11 nanocrystals are well-crystallized and their sizes are uniform (about 5 nm). As a luminescence host, it shows higher emitting intensity with Eu3+ doping.

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