...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical Materials >Photoluminescence properties of novel Eu-2+-activated CaSi_6N_8O oxynitride phosphor for white LED applications
【24h】

Photoluminescence properties of novel Eu-2+-activated CaSi_6N_8O oxynitride phosphor for white LED applications

机译：新型Eu-2 +激活的CaSi_6N_8O氮氧化物磷光体在白色LED应用中的发光特性

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

A series of novel Eu-2+-activated CaSi_6N_8O greenish-yellow phosphors were synthesized via solid state reaction method. The synthesized CaSi_6N_8O:Eu-2+ phosphors could absorb UV to near UV light. The emission spectra exhibited a broad greenish-yellow emission band when excited with a light of wavelength 405 nm. The emission spectrum shifted towards longer wavelength with increasing Eu-2+ concentration. The emission intensity increased with the increasing Eu-2+ concentration and the quenching concentration was found to be 0.1 mol. The observed results were explained by the energy transfer mechanism due to dipole-dipole interactions among Eu-2+ ions. These novel greenish-yellow CaSi_6N_8O:Eu-2+ phosphors could be considered as potential candidate for the white LED applications.
机译：通过固相反应法合成了一系列新型的Eu-2 +活化的CaSi_6N_8O绿黄色荧光粉。合成的CaSi_6N_8O：Eu-2 +荧光粉可以吸收紫外光至近紫外光。当用波长405nm的光激发时，发射光谱显示出宽的黄绿色发射带。随着Eu-2 +浓度的增加，发射光谱向更长的波长偏移。发射强度随Eu-2 +浓度的增加而增加，发现淬灭浓度为0.1 mol。 Eu-2 +离子之间的偶极-偶极相互作用通过能量转移机制解释了观察到的结果。这些新颖的黄绿色CaSi_6N_8O：Eu-2 +荧光粉可被视为白光LED应用的潜在候选材料。

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