...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of spectroscopy >Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis
【24h】

Orange-Reddish Light Emitting Phosphor GdVO4:Sm3+ Prepared by Solution Combustion Synthesis

机译：溶液燃烧合成制备橙红色发光磷光体GdVO4：Sm3 +

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The gadolinium vanadate doped with samarium (GdVO4Sm3+) nanopowder was prepared by the solution combustion synthesis (SCS) method. After synthesis, in order to achieve the full crystallinity, the material was annealed in air atmosphere at 900°C. Phase identification in the postannealed powder samples was performed by X-ray diffraction, and morphology was investigated by high-resolution scanning electron microscopy (SEM). Photoluminescence characterization of the emission spectrum and time-resolved analysis have been performed using the tunable laser optical parametric oscillator excitation and the streak camera. Several strong emission bands in the Sm3+ emission spectrum were observed, located at 567 nm (4G5/2–6H5/2), 604 nm (4G5/2–6H7/2), and 646 (654) nm (4G5/2–6H9/2), respectively. The weak emission bands at 533 nm (4F3/2–6H5/2) and 706 nm (4G5/2–6H11/2) and a weak broad luminescence emission band of VO43− were also observed by the detection system. We analyzed the possibility of using the host luminescence for two-color temperature sensing. The proposed method is improved by introducing the temporal dependence in the line intensity ratio measurements.
机译：通过固溶燃烧合成（SCS）法制备了掺sa（GdVO4Sm3 +）纳米粉的钒酸van。合成后，为了获得完全结晶度，将材料在空气气氛中于900°C退火。通过X射线衍射进行后退火粉末样品中的相鉴定，并通过高分辨率扫描电子显微镜（SEM）研究形态。发射光谱的光致发光表征和时间分辨分析已使用可调激光光学参量振荡器激发和条纹相机进行。在Sm3 +发射光谱中观察到几个强发射带，分别位于567 nm（4G5 / 2-6H5 / 2），604 nm（4G5 / 2-6H7 / 2）和646（654）nm（4G5 / 2-6H9） / 2）。通过检测系统还观察到了533 nm（4F3 / 2–6H5 / 2）和706 nm（4G5 / 2–6H11 / 2）的弱发射带和VO43−的弱宽发光发射带。我们分析了使用主体发光进行双色温度感测的可能性。通过在线强度比测量中引入时间依赖性来改进所提出的方法。

著录项

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