Yb掺杂蓝色荧光材料GdVO4:Tm的发光性能

Luminescence Characteristic of Yb-Doped GdVO4:Tm Blue Luminescent Material

摘要:

以柠檬酸作为络合剂，采用溶胶-凝胶法制备不同Yb含量的纳米级蓝色荧光材料GdVO4:Tm。采用XRD、荧光光谱仪、SEM对产物的相组成、发光性能和颗粒形貌进行了分析。结果表明，所得掺杂Yb的GdVO4:Tm蓝色发光粉体，粒度约80 nm；在260~310 nm的紫外光激发下，发出明亮的蓝色荧光；当Yb含量在1% (摩尔分数, 下同)时，粉末的发光性能最好

Abstract:

Nanocrystal blue luminescent material GdVO4 was synthesized by a citrate-gel (CG) method. Through fluorescence spectra, XRD and SEM, the author made a comprehensive analysis of the crystal structure, particle size, morphology and luminescence properties of Yb-doped GdVO4:Tm. The results show that the particle size of Yb-doped GdVO4:Tm is about 80 nm. Excited by 260~310 nm ultraviolet radiation, the Yb-doped GdVO4:Tm can emits bright blue fluorescence, and has the optimal properties when Yb3+ concentration at 1 mol%