Preparation and characterization of monodisperse spherical particles of X-ray nano-phosphors based on Gd_2O_2S:Tb
Preparation and characterization of monodisperse spherical particles of X-ray nano-phosphors based on Gd_2O_2S:Tb作者机构：Optoelectronic Technology Institute Dalian Maritime University Dalian 116026 China
出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)
年 卷 期：2009年第54卷第17期
页 面：2982-2986页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：Supported by the National Natural Science Foundation of China (Grant No. 10374011)
主 题：纳米荧光粉 球形颗粒 铽掺杂 单分散 X射线 制备 均匀沉淀法 基础
摘 要：Monodisperse spherical Gd2O2S:Tb nanoparticles have been prepared using an improved homogeneous precipitation method combined with solid-gas sulfuration technology. The effects of Tb3+-doped concentration on luminescent intensity and color purity of samples were investigated, and the optimal Tb3+-doped concentration was determined. Under the excitation of X-ray, the obtained sample shows excellent luminescent properties, and its luminescent intensity is increased by about 50% under lower sulfuration temperature compared with that of the Gd2O2S:Tb nanoparticles prepared by complex precipitation method.
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