Growth and optical characterization of Pb-, TI-doped LiF crystals

被引:4
作者
Somma, F. [3 ]
Montereali, R. M. [2 ]
Vincenti, M. A. [2 ]
Polosan, S. [1 ]
Secu, M. [1 ]
机构
[1] Natl Inst Mat Phys, Bucharest 77125, Romania
[2] CR Frascati, FIM Dep, ENEA, I-00044 Frascati, Italy
[3] Univ Roma Tre, Phys Dep, I-00146 Rome, Italy
关键词
LiF crystal; Differential thermal analysis; Thermogravimetry; Optical absorption; Photoluminescence; LITHIUM-FLUORIDE; CENTERS; DETECTOR;
D O I
10.1016/j.optmat.2010.04.038
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Large and transparent LiF:Pb and LiF:TI crystals were successfully grown by using Kyropoulos method. They were characterized using spectroscopic measurements combined with differential thermal analysis and thermogravimetry (TG) analysis, in order to investigate the effect of dopants upon the optical properties of these crystals. The optical absorption peaks at 278 nm (for Pb) and 273 nm (for TI) have been assigned to the A-type transition of these ions. Photoluminescence spectra have shown bands at 350 nm (for TI) and 375 nm (for Pb), which have been associated to the dopant ions in different configurations in the lattice. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1309 / 1312
页数:4
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