Hydrothermal synthesis and luminescent properties of LnPO4:Tb (Ln = La, Gd) phosphors under VUV excitation

被引：30
|
作者：
Wu, Chunfang
Wang, Yuhua [1 ]
Jie, Wei
机构：
[1] Lanzhou Univ, Dept Mat Sci, Sch Phys Sci & Technol, Lanzhou 730000, Gansu Province, Peoples R China
[2] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Sch Phys Sci & Technol, MOE, Lanzhou 730000, Gansu Province, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 436卷 / 1-2期
基金：
高等学校博士学科点专项科研基金;
关键词：
VUV; luminescence; hydrothermal synthesis; phosphate;
D O I：
10.1016/j.jallcom.2006.07.056
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Tb doped LnPO(4) (Ln = La, Gd) phosphors with monoclinic system were successfully prepared by mild hydrothermal reaction at 240 degrees C. The 543 nm emission of Tb+3 in GdPO4 is higher than in LaPO4. By comparison, it is found that the intensity of host absorption band of GdPO4:Tb is higher than that of LaPO4:Tb which is ascribed to the energy transfer efficiency between the PO43- molecule and Tb3+ is higher. The en-fission intensity of optimal composition of GdPO4:0.3Tb is comparable with that of commercial Zn2SiO4:0.04Mn phosphor. These results suggest that GdPO4:0.3Tb is a potential candidate for plasma display panels (PDPs) application. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：383 / 386
页数：4
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