人工晶体学报2012，Vol.41Issue(1)：165-170,6.
掺铒PLZT电光陶瓷发光特性
Luminescence Characteristics of Er3+ Doped PLZT Ceramics
摘要
Abstract
The absorption spectrum and upconversion spectrum of Er3+ doped PLZT ceramic were analyzed, and the luminescence characteristics of this material were studied by Dexter theory and rate equation. The cross relaxation rates of 4I13/2 +4I13/2→4I9/2+4I15/2(ET1)and 4I11/2 +4I11/2→4I15/2+4F7/2 (ET2) were obtained as 2.06×103 s-1 and 1.61×l05s-1, respectively. A simple model to describe the frequency upconversion dynamics of Er3 + was proposed, and the influences of cross relaxation processes on dynamic of ions in the excited states were discussed by rate equation. The cross relaxation processes of ET1 and ET2 huge decrease the population of 4I13/2 level, and obstacles to luminescence of 1550 run. Oppositely, ET processes promote the luminescence of 800 nm.关键词
发光特性/PLZT陶瓷/Dexter理论/交叉驰豫几率Key words
luminescence characteristics/PLZT ceramics/Dexter theory/cross relaxation rate分类
数理科学引用本文复制引用
冯卓宏,林林,王哲哲,郑志强..掺铒PLZT电光陶瓷发光特性[J].人工晶体学报,2012,41(1):165-170,6.基金项目
福建省教育厅JK类科技项目(JK2011008) （JK2011008）
福建省科技重大专项课题(2007 HJ0004-2)资助项目 （2007 HJ0004-2）
福建省青年人才创新项目(2007 F3027) （2007 F3027）
