Effect of gamma-irradiation on spectral properties of undoped Y2SiO5 crystals


Autoria(s): Pang HY; 赵广军; Su LB; Jie MY; 何晓明; 徐军
Data(s)

2006

Resumo

The absorption spectra of undoped Y2SiO5 crystals were studied before and after gamma-irradiation. After gamma-irradiation, the additional absorption peaks at 260-270 and 320nm were observed in as-grown and H,annealed Y2SiO5 crystal, but it did not occur in air-annealed Y2SiO5 crystal. These absorption peaks were attributed to F color centers and O- hole centers, respectively. Owing to more oxygen vacancies and color centers in H-2-annealed Y2SiO5 crystal than that in as-grown Y2SiO5 crystal after gamma-irradiation, the additional absorption peaks were more intense in the former than that in the latter. With the irradiation dose increasing from 20 to 220kGy, the intensity of additional absorption peaks increased.

Identificador

http://ir.siom.ac.cn/handle/181231/5773

http://www.irgrid.ac.cn/handle/1471x/12360

Idioma(s)

英语

Fonte

Pang HY;赵广军;Su LB;Jie MY;何晓明;徐军.,Cryst. Res. Technol.,2006,41(3):255-258

Palavras-Chave #光学材料;晶体 #Y2SiO5 crystal #gamma-irradiation #spectral properties #color centers
Tipo

期刊论文