Fluorescence spectra of Tm3+-doped rare earth oxychloride powder phosphors

被引：25

作者：

Rambabu, U ^{[1
]}

Balaji, T ^{[1
]}

Annapurna, K ^{[1
]}

Buddhudu, S ^{[1
]}

机构：

[1] SRI VENKATESWARA UNIV,DEPT PHYS,TIRUPATI 517502,ANDHRA PRADESH,INDIA

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1996年 / 43卷 / 02期

关键词：

fluorescence spectra; powder phosphors; rare earth oxychlorides;

D O I：

10.1016/0254-0584(95)01616-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reports the fluorescence properties of a new family of Tm3+-doped powder phosphors of LaOCl, GdOCl, YOCl, (La,Gd)OCl, (La,Y)OCl and (Gd,Y)OCl. A bright blue emission (D-1(2) --> F-3(4)) was observed from all these phosphors under a UV lamp and this situation was confirmed by fitting the colour coordinates ((X) over bar, (Y) over bar) in the IEC chromaticity diagram. The relative fluorescence intensity ratios (R) for the different measured emission levels were also evaluated in order to examine the host matrix compositional effects on the fluorescence behaviours. For the measured fluorescent transitions, the stimulated emission cross sections (sigma(p)(E)) were also computed.

引用

页码：195 / 198

页数：4