文献类型：期刊文献

中文题名：Y_2O_2S∶Eu^(3+),Mg^(2+),Ti^(4+)长余辉材料制备中烧结条件和助熔剂的影响

英文题名：Study on the Firing Condition and Flux in Synthesizing Y_(2)O_(2)S∶Eu^(3+),Mg^(2+),Ti^(4+) Red Afterglow Phosphor

作者：魏雅姝[1];张金朝[1];宋鹂[1]

机构：[1]华东理工大学无机材料系,上海200237

年份：2005

卷号：22

期号：12

起止页码：1342

中文期刊名：应用化学

外文期刊名：Chinese Journal of Applied Chemistry

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：Y2O2S;Eu^3+;Mg^2+;Ti^4+;烧结条件;助熔剂;发光性质

外文关键词：Y2 O2 S： Eu^3＋ , firing condition, flux, luminescent properties

摘要：采用高温固相法合成了Y2O2S∶Eu3+,Mg2+,Ti4+红色长余辉材料。通过X射线衍射分析和扫描电镜测试技术研究了样品的晶体结构和颗粒的大小、形貌,分析了有助于晶体颗粒生长的烧结温度、气氛以及助熔剂对它的影响,还对荧光体的发光光谱、相对亮度、余辉性质进行了研究。结果表明,制备得到的Y2O2S∶Eu3+,Mg2+,Ti4+红色长余辉材料体系相态纯净,有较完整和均匀的晶形,完整的晶体结构有利于提高荧光体的发光性质。制备中合适的烧结温度为1 150℃,要选择弱还原气氛。加入L i3PO4可以使晶体颗粒的晶型完整,粒径增大,并且粒度分布较窄。
Eu^3＋ -activated yttrium oxysulfide red afterglow phosphor was synthesized by solid-state reaction and analyzed by means of XRD, SEM, and its emmision spectra （ES）, relative brightness, and fluorescent decay were studied. Effects of firing conditions and flux on the crystal structure, particle size and morphology, and luminescent properties of the phosphor were studied. According to the results, the phosphor was obtained without any Y2O3 phase and exhibited well-formed crystalline particles. Luminescent properties can be optimized by well-formed crystalline particles. The corresponding firing condition is 1 150℃ in a weak reducing atmosphere. The addition of Li3PO4 helps to increase the mean diameter of the phosphor product and minimize the particle size distribution.