首页> 外文期刊>CERAMICS INTERNATIONAL >A reddish orange stoichiometric phosphor LiEu(PO_3)_4 for white light-emitting diodes
【24h】

A reddish orange stoichiometric phosphor LiEu(PO_3)_4 for white light-emitting diodes

机译:红橙色化学计量荧光粉LiEu(PO_3)_4,用于白色发光二极管

获取原文
获取原文并翻译 | 示例
           

摘要

Stoichiometric phosphors LiGd_(1-x)Eu_x(PO_3)_4(x=0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized via traditional solid state reactions. The X-ray powder diffraction measurements show that all prepared samples are isostructural with LiNd(PO_3)_4. Eu~(3+) doped phosphors can emit intense reddish orange light under the excitation of near ultraviolet light from 370 to 410 nm. The strongest two at 591 and 613 nm can be attributed to the transitions from excited state ~5D_0 to ground states ~7F_1 and ~7F_2, respectively. The typical chromaticity coordinates (x=0.620, y=0.368) of Eu~(3+) doped phosphors are in red area. The recorded absorbance spectra indicate that there is effective absorbance in the near UV region for all Eu~(3+) doped samples. Present research indicates that LiGd_(1-x)Eu_x(PO_3)_4 is a promising phosphor for white light-emitting diodes.
机译:通过传统的固态反应合成了化学计量的磷光体LiGd_(1-x)Eu_x(PO_3)_4(x = 0,0.2,0.4,0.6,0.8,1.0)。 X射线粉末衍射测量表明,所有制备的样品均为LiNd(PO_3)_4同构。 Eu〜(3+)掺杂的磷光体在370至410 nm的近紫外光的激发下可以发出强烈的红橙色光。在591和613 nm处最强的两个可分别归因于从激发态〜5D_0到基态〜7F_1和〜7F_2的跃迁。 Eu〜(3+)掺杂的荧光粉的典型色度坐标(x = 0.620,y = 0.368)在红色区域。记录的吸光度光谱表明,对于所有Eu〜(3+)掺杂样品,在近紫外区域均具有有效吸光度。目前的研究表明,LiGd_(1-x)Eu_x(PO_3)_4是一种有前景的用于白色发光二极管的荧光粉。

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