Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1495890 | Optical Materials | 2010 | 4 Pages |
Abstract
Large and transparent LiF:Pb and LiF:Tl crystals were successfully grown by using Kyropoulos method. They were characterized using spectroscopic measurements combined with differential thermal analysis and thermogravimetry (TG) analysis, in order to investigate the effect of dopants upon the optical properties of these crystals. The optical absorption peaks at 278Â nm (for Pb) and 273Â nm (for Tl) have been assigned to the A-type transition of these ions. Photoluminescence spectra have shown bands at 350Â nm (for Tl) and 375Â nm (for Pb), which have been associated to the dopant ions in different configurations in the lattice.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
F. Somma, R.M. Montereali, M.A. Vincenti, S. Polosan, M. Secu,