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Ti~(4+)掺杂硼硅酸盐微晶玻璃的光谱特性
  • ISSN号：1000-7032
  • 期刊名称：发光学报
  • 时间：2011
  • 页码：353-357
  • 分类：O482.31[理学—固体物理;理学—物理]
  • 作者机构：[1]中国计量学院光学与电子科技学院,浙江杭州310018
  • 相关基金：国家自然科学基金（50772102,51072190）; 教育部新世纪优秀人才支持计划（NCET-07-0786）; 浙江省自然科学基金（Y4100571,Z4100030）资助项目
  • 相关项目：用于白光LED的稀土掺杂硅酸盐纳米微晶玻璃研制
作者： 李晨霞|韦萍|尹雷|叶仁广|华有杰|徐时清|
关键词： 微晶玻璃, 钛离子, X射线衍射, 荧光材料, glass-ceramic, Ti ion, X-ray diffraction, phosphors
中文摘要：

制备了Ti4＋掺杂硼硅酸盐玻璃,根据玻璃样品的差热分析（DTA）进行微晶化处理,测试了Ti4＋掺杂硼硅酸盐微晶玻璃的X射线衍射（XRD）谱、透射电镜（TEM）图像、吸收光谱和发射光谱。根据Scherrer公式计算了BaYF5微晶的平均晶粒尺寸并与TEM图像进行比对。在紫外光激发下,观察到Ti4＋掺杂BaYF5硼硅酸盐微晶玻璃强烈的宽带发光（300~800 nm）,对应于Ti4＋（3d0）-O2-（2s23p6）的电荷迁移跃迁,与未经热处理玻璃样品相比,微晶玻璃的发光强度增强。通过优化热处理温度和掺杂浓度,得到了紫外光激发下发白光的Ti4＋掺杂BaYF5硼硅酸盐玻璃,对应的色坐标为（0.261,0.351）。

英文摘要：

Ti4＋doped borosilicate glass has been prepared.The as-made glass was heat-treated and crystallized.X-ray diffraction（XRD）,TEM,absorption spectrum and emission spectrum of glass ceramics were measured.Crystallite size of BaYF5 glass ceramics were calculated by Scherrer formula and the comparing with the result of TEM.White emission band（300~800 nm） originated from the charge transferring of Ti4＋（3d0）-O2-（2s2 3p6） can be observed in Ti4＋ doped borosilicate glass ceramics.Comparing with the as-made glass,significantly increased luminescence was observed in the glass ceramics.By optimizing the heat treat temperature and concentration of Ti4＋,borosilicate glass ceramics with CIE coordinate（0.261,0.351） can be obtained which is close to the standard white-light illumination（0.333,0.333）.

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期刊信息
  • 《发光学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会发光分会 中国科学院长春光学精密机械与物理研究所
  • 主编：申德振
  • 地址：长春市东南湖大路3888号
  • 邮编：130033
  • 邮箱：fgxbt@126.com
  • 电话：0431-86176862
  • 国际标准刊号：ISSN：1000-7032
  • 国内统一刊号：ISSN：22-1116/O4
  • 邮发代号:12-312
  • 获奖情况:
  • 物理学类核心期刊,2000年获中国科学院优秀期刊二等奖,中国期刊方阵“双效”期刊
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  • 被引量:7320