Optical absorption of Tl+ ions in KBr1-xIx:TlI mixed crystals

被引：0
|
作者：
Eswaran, P. [1 ]
Ravisankar, R. [2 ]
Nagarajan, S. [3 ]
机构：
[1] SMK Fomra Inst Technol, Dept Phys, Madras 603103, Tamil Nadu, India
[2] Govt Arts Coll, Dept Phys, Thiruvannamalai 606603, Tamil Nadu, India
[3] Pondicherry Engn Coll, Dept Phys, Pondicherry 605014, India
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2009年 / 20卷 / 04期
关键词：
F-centers; KBr1-xIx:TlI mixed Crystals; Optical absorption; Tl+ ions; Mixed halides; A-absorption band; ALKALI; IMPURITIES; BANDS; KCL; LUMINESCENCE; DEPENDENCE; CENTERS; HALIDES;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Optical absorption spectra of the mixed crystals of KBr1-xIx:Tl+ crystals studied at room temperature are reported. The absorption spectra indicated the appearance of additional bands on the low energy side of the Characteristic A, B and C absorption bands of KBr:Tl+ single crystals with increasing iodine composition. Comparing with earlier reports, the additional bands were attributed to the complex Tl+ centers in the mixed configuration surrounded by Br- and I- ions as nearest neighbors. The absorption spectra of gamma irradiated mixed crystals showed F band, which shifts towards low energy side with the composition of iodine ions in the mixed crystals.
引用
收藏
页码：208 / 218
页数：11
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