首页> 外文会议>Congress on Light >Structural and Luminescent Studies on Nanosized Cerium Doped Strontium Barium Niobate
【24h】

Structural and Luminescent Studies on Nanosized Cerium Doped Strontium Barium Niobate

机译:纳米铈掺杂锶钡铌酸锶的结构和发光研究

获取原文

摘要

The nanosized cerium doped Strontium Barium Niobate ceramic powder system have been synthesized by sol-gel technique. The X-ray diffraction measurement confirmed the structure of cerium doped Strontium Barium Niobate ceramic powder system. The absorption peaks were analysed by FTIR spectroscopy. Particle morphology and size of the powder were examined using SEM and TEM. Crystal quality and structure were also examined by micro raman spectra. The transmission electron microscopy image of cerium doped Strontium Barium Niobate nano powder system consist of particles with average size of 20 nm. A band gap of the system was measured by optical absorption spectra. Photoluminescence data were recorded at room temperature. The emission peaks were detected under excitation at 305 nm wavelength. The peaks are assigned to the cerium electron transition from lowest 5d level to 2F_(5/2)and 2F_(7/2) of 4f, respectively. The decay time were also measured for cerium doped Strontium Barium Niobate powder system.
机译:通过溶胶 - 凝胶技术合成了纳米化铈掺杂锶钡铌酸钡陶瓷粉末系统。 X射线衍射测量证实了铈掺杂锶钡铌酸盐陶瓷粉末系统的结构。通过FTIR光谱分析吸收峰。使用SEM和TEM检查粉末形态和粉末的大小。通过微拉曼光谱检查晶体质量和结构。掺杂铈锶钡铌酸锶纳米粉末系统的透射电子显微镜图像由平均尺寸为20nm的颗粒组成。通过光学吸收光谱测量系统的带隙。在室温下记录光致发光数据。在激发下在305nm波长的激发下检测发射峰。峰值分别分配给铈电子从最低5d水平到2f_(5/2)和4f的2f_(7/2)的转变。还测量蒸馏时间为铈掺杂锶钡铌酸钡粉末系统测量。

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