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Effect of annealing and gamma irradiation on undoped and Eu3+-doped Y2SiO5 single crystals
- Source :
-
Journal of Crystal Growth . Jan2006, Vol. 286 Issue 1, p126-130. 5p. - Publication Year :
- 2006
-
Abstract
- Abstract: 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 γ-ray irradiation. The absorption bands of Eu2+ ions with peaks at 300 and 390nm were observed in the as-grown Y2SiO5:Eu3+ crystal. These peaks were more intense in H2-annealed and irradiated Y2SiO5:Eu3+ crystals. The additional absorption peaks at 260 and 320-330nm which were attributed to F color centers and O − hole centers were observed in irradiated undoped Y2SiO5 and Y2SiO5:Eu3+ crystals, respectively. [Copyright &y& Elsevier]
- Subjects :
- *ANNEALING of crystals
*IRRADIATION
*CRYSTALLOGRAPHY
*ABSORPTION spectra
Subjects
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 286
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 19129710
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2005.09.049