李艳红,赵丽,张永明,李英春,董文嗣

• 1:沈阳化工大学材料科学与工程学院

摘要(Abstract)：

采用传统熔融法制备了系列Eu3+掺杂的SiO2-A12O3-CaO-CaF2-NaF-Eu2O3氟氧化物基质玻璃。通过优化组分和热处理温度,获得Eu3+掺杂的CaF2的微晶玻璃。用差热分析(DTA),X射线衍射(XRD)、电子扫描电镜(SEM)和荧光光谱等对样品进行了分析。结果表明,基质玻璃经650℃热处理1 h后获得了Eu3+掺杂的CaF2的微晶玻璃,CaF2晶粒尺寸约为21 nm。与基质玻璃相比,微晶玻璃中5D0→7F2发射强度和激发强度增强,Eu3+离子局域对称环境降低。

关键词(KeyWords)： 微晶玻璃;CaF2;发光;Eu3+;局域对称环境

Abstract:

Keywords:

基金项目(Foundation): 辽宁省教育厅科学技术研究项目(L2011063)

作者(Author): 李艳红,赵丽,张永明,李英春,董文嗣

DOI: 10.13289/j.issn.1009-6264.2013.12.007

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