Synthesis, structure and VUV luminescent properties of rubidium rare-earth fluorides

被引：22
|
作者：
You, FT [1 ]
Huang, SH
Liu, SM
Tao, Y
机构：
[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Lab Mat Informat Storage & Display, Beijing 100044, Peoples R China
[2] Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 08期
基金：
中国国家自然科学基金;
关键词：
rubidium rare-earth fluorides; hydrothermal synthesis; vacuum ultraviolet (VUV); energy transfer; quantum cutting effect;
D O I：
10.1016/j.jssc.2004.04.040
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
RbF-LnF(3) (Ln = rare earth) systems were synthesized by hydrothermal technique. Under the hydrothermal condition, the light rare-earth elements form LnF(3) (Ln= La - Nd), while the heavy ones form RbLn(2)F(7) (Ln = Y, Er, Yb and Lu) with the RbEr2F7 structure type. RbLn(3)F(10) compounds were found for the in-between rare-earth cations (Ln= Eu - Tm and Y), which crystallize exclusively in the cubic gamma-KYb3F10-type structure. The luminescent properties under vacuum ultraviolet light were studied for the Eu3+-doped RbLn(3)F(10) (Ln = Y, Gd) and a high quantum efficiency of about 150% was observed for RbGd3F10:Eu3+. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：2777 / 2782
页数：6
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