Effects of gamma-irradiation on Al2O3 crystals grown under reducing atmosphere


Autoria(s): 董永军; 徐军; 周国清; Su Fenglian; 苏良碧; 李红军; 司继良g; Qian Xiaobo; Li Xiaoqing; Shen Jun
Data(s)

2007

Resumo

Gamma-ray irradiation-induced color centers in Al2O3 crystals grown by temperature gradient techniques (TGT) under a strongly reducing atmosphere were studied. The transition F+ -> F takes place during the irradiation process. Glow discharge mass spectroscopy (GDMS) and annealing treatments show that Fe3+ impurity ions are present in the crystals. A composite (F+-Fe3+) defect was presented to explain the origin of the 255 nm band absorption in the TGT-Al2O3 crystals. (C) 2006 Elsevier B.V. All rights reserved.

Identificador

http://ir.siom.ac.cn/handle/181231/956

http://www.irgrid.ac.cn/handle/1471x/9832

Idioma(s)

英语

Fonte

董永军;徐军;周国清;Su Fenglian;苏良碧;李红军;司继良g;Qian Xiaobo;Li Xiaoqing;Shen Jun.,Mater. Lett.,2007,61(13):2606-2608

Palavras-Chave #color center #defects #gamma-ray #irradiation #Al2O3
Tipo

期刊论文