...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical Materials >Structural and optical studies of ZnAl2O4:x% Cu2+(0 < x <= 1.25) nanophosphors synthesized via citrate sol-gel route
【24h】

Structural and optical studies of ZnAl2O4:x% Cu2+(0 < x <= 1.25) nanophosphors synthesized via citrate sol-gel route

机译：柠檬酸溶胶-凝胶法合成ZnAl2O4：x％Cu2 +（0

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nanocrystalline ZnAl2O4:x% Cu2+(0 < x <= 1.25) phosphor powders were prepared via the citrate sol-gel technique. The pure-phase cubic structures in this systems were verified by the powder X-ray diffraction. Energy Dispersive x-ray Spectroscopy analysis confirmed the presence of the expected elements (Zn, Al, O and Cu). Scanning Electron Microscopy showed that the morphology of the phosphor was dependent on the concentration of Cu2+. High-Resolution Transmission Electron Microscopy confirmed that the Cu2+ concentration does not significantly influence the crystallites sizes of the phosphors. Ultraviolet-visible spectroscopy results showed that the Cu2+ concentration influenced the band gap of the host. Photoluminescence results showed that the emission intensity of the powder sample was dependent on the Cu2+ concentration. The emission from the host lattice was observed at 394 nm, while Cu2+ showed major emission at 405 and minor emission at 574 nm. The emission at 405 nm was due to the 3d(8)4s(1) -> 3d(9) transitions of Cu2+. The Commission on Illumination color coordinate evidently showed shifts from the bluewish to the greenish region with an increase in Cu2+ concentration. (C) 2016 Elsevier B.V. All rights reserved.
机译：纳米晶态ZnAl2O4：x％Cu2 +（0 3d（9）跃迁。照明委员会的颜色坐标显然表明，随着Cu2 +浓度的增加，从蓝色区域变为绿色区域。 （C）2016 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Optical Materials》 |2017年第2期|26-32|共7页
  • 作者

    Motloung S. V.; Dejene F. B.; Koao L. F.; Ntwaeaborwa O. M.; Swart H. C.; Motaung T. E.; Ndwandwe O. M.;

  • 作者单位

    Sefako Makgatho Hlth Sci Univ Dept Phys POB 94 ZA-0204 Medunsa South Africa;

    Univ Free State Dept Phys Qwaqwa Campus Private Bag X13 ZA-9866 Phuthaditjhaba South Africa;

    Univ Witwatersrand Sch Phys Private Bag 3 ZA-2050 Johannesburg South Africa;

    Univ Free State Dept Phys POB 339 ZA-9300 Bloemfontein South Africa;

    Univ Zululand Dept Chem KwaDlangezwa Campus Private Bag X1001 ZA-3886 Kwa Zulu South Africa;

    Univ Zululand Richards Bay Campus Private Bag X1001 ZA-3886 Kwa Dlangezwa South Africa;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sol-gel; ZnAl2O4; Cu2+-doped; Luminescence; CIE;

    机译：溶胶凝胶ZnAl2O4;掺杂Cu2 +发光;CIE;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号