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白光LED用Sr2SiO4:Eu3+,Dy3+荧光粉的制备及发光性能研究
  • ISSN号：1002-185X
  • 期刊名称：《稀有金属材料与工程》
  • 时间：0
  • 分类：TM923.04[电气工程—电力电子与电力传动]
  • 作者机构：[1]北京交通大学发光与光信息技术教育部重点实验室
  • 相关基金：全国杰出青年科学基金(60825407);国家自然科学基金(60877025);北京市自然科学基金(2092024);北京市科学技术委员会基金(Z08000303220803);国家重点基础研究计划“973”计划(2011CB932700)
作者： 邬洋[1], 王永生[1], 何大伟[1], 富鸣[1], 赵玉晶[1], 李玥[1], 苗峰[1]
关键词： 溶胶-凝胶法, Sr2SiO4:Eu3+, Dy3+, 电荷补偿剂
中文摘要：

采用溶胶-凝胶法在Sr2SiO4基质中掺杂Eu3+和Dy3+两种稀土离子,制备了白光发光二极管(LED)用荧光粉Sr2SiO4:Eu3+,Dy3+。通过样品的X射线衍射图谱、扫描电镜以及光致发光光谱的测试和表征,研究了Sr2SiO4:Eu3+,Dy3+的内部结构和发光性能。结果表明,样品属于正交晶系,为α′-Sr2SiO4。荧光粉外形为类球状,颗粒直径为1~2μm,且出现颗粒团聚现象。在386nm的近紫外光的激发下(常温),样品发射出很强的白光。Sr2SiO4:Eu3+,Dy3+的发光强度随着Eu3+、Dy3+和电荷补偿剂Li+浓度的增加先增大后逐渐减小。

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期刊信息
  • 《稀有金属材料与工程》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会 中国材料研究学会 西北有色金属研究院
  • 主编：张平祥
  • 地址：西安市51号信箱
  • 邮编：710016
  • 邮箱：RMME@c-nin.com
  • 电话：029-86231117
  • 国际标准刊号：ISSN：1002-185X
  • 国内统一刊号：ISSN：61-1154/TG
  • 邮发代号:52-172
  • 获奖情况:
  • 首届国家期刊奖,中国优秀期刊一等奖,中国有色金属工业优秀期刊1等奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:24715