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SrWO4∶Eu3+纳米晶的合成、表征和光致发光性能
  • ISSN号：1000-7032
  • 期刊名称：《发光学报》
  • 时间：0
  • 分类：O482.31[理学—固体物理;理学—物理]
  • 作者机构：黑龙江大学功能无机材料化学教育部重点实验室,化学化工与材料学院, 中国科学院长春光学精密机械与物理研究所
  • 相关基金：国家自然科学基金(11174276,21171052);教育部新世纪优秀人才支持计划(NCET-11-0959);黑龙江省博士后科学基金(LBH-Q11009);哈尔滨市科技创新人才研究专项资金;黑龙江大学杰出青年基金(RC2013QN017028)资助项目
作者： 徐冰玉, 王国凤, 李莹, 刘帅, 冯莉, 张继森
关键词： SrWO4∶Eu3+, 纳米晶体, 发光, SrWO4∶Eu3+, nanocrystals, photoluminescence
中文摘要：

用CTAB辅助水热法合成了四方相的SrWO4∶Eu3+纳米晶体。通过X射线衍射仪和扫描电子显微镜等测试手段对样品进行了表征。SrWO4∶Eu3+纳米晶粒尺寸随着反应溶液中Eu3+离子和CTAB含量的增加而减小。在393 nm光激发下,观察到5D0→7F J(J=1,2,3,4)和5D1→7F0跃迁,并且5D0→7F2跃迁的发射最强,表明Eu3+在SrWO4基质中占据了非对称中心的格位。发射峰的位置与激发波长无关。

英文摘要：

Tetragonal phase SrWO 4 and SrWO 4 ∶ Eu3 +nanocrystals were synthesized by a CTABassisted hydrothermal method.The nanocrystals were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM).The crystalline size of SrWO 4 ∶ Eu3 +decreases with the increasing of Eu3 +and CTAB content in the reaction solutions gradually.Under 393 nm excitation,the5D 0 →7F J(J = 1,2,3,4) and5D 1 →7F 0 transitions are observed,and the luminescence is dominated by5D 0 →7F 2 transition,indicating that Eu3 +occupies a site lacking inversion symmetry.The positions of emission peaks are independent of excitation wavelength.When the excitation is performed at 466 nm,the emission intensity is the strongest.

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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
  • 国内外数据库收录:
  • 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,美国剑桥科学文摘,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:7320