徐光青,刘家琴,郑治祥,吴玉程

• 1:合肥工业大学材料科学与工程学院

摘要(Abstract)：

采用溶胶-凝胶(sol-gel)法制备稀土离子Eu掺杂的Sr2MgSi2O7硅酸盐基发光材料,通过X射线衍射仪(XRD)、透射电子显微镜(TEM)、荧光分光光度计(PL)对样品的晶体结构、形貌及光学性能进行测试。XRD测试结果表明,在较低的处理温度下可获得Sr2MgSi2O7,但样品中也存在其它的杂质相。荧光光谱测试结果表明,经空气中处理的Eu3+在395 nm光激发下产生590 nm、610 nm的发射峰,通过氢气还原处理后得到的Eu2+离子的发光从250到400 nm的紫外区可以激发峰值为460 nm左右的宽谱带,且随氢气还原温度的升高和Eu离子掺杂浓度的提高发光强度也增强。

关键词(KeyWords)： 溶胶-凝胶法;Sr2MgSi2O7;光致发光;Eu掺杂

Abstract:

Keywords:

基金项目(Foundation): 高等学校博士学科点专项科研基金新教师课题(20070359030)

作者(Author): 徐光青,刘家琴,郑治祥,吴玉程

DOI: 10.13289/j.issn.1009-6264.2010.05.004

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