Effect of annealing and gamma irradiation on undoped and Eu3+-doped Y2SiO5 single crystals
Data(s) |
2006
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Resumo |
The absorption spectra of the undoped Y2SiO5 and Eu3+-doped Y2SiO5 crystals grown by the Czochralski technique were compared before and after annealing and, similarly, the unannealed and annealed crystals after gamma-ray irradiation. The absorption bands of Eu2+ ions with peaks at 300 and 390 nm were observed in the as-grown Y2SiO5:Eu3+ crystal. These peaks were more intense in H-2-annealed and irradiated Y2SiO5:Eu3+ crystals. The additional absorption peaks at 260 and 320-330 nm which were attributed to F color centers and O- hole centers were observed in irradiated undoped Y2SiO5 and Y2SiO5:Eu3+ crystals, respectively. (c) 2005 Elsevier B.V. All rights reserved. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Pang HY;赵广军;Su LB;Jie MY;何晓明;徐军.,J. Cryst. Growth,2006,286(1):126-130 |
Palavras-Chave | #光学材料;晶体 #color centers #gamma irradiation #spectral properties #YSO crystal |
Tipo |
期刊论文 |