Title of article
Characterisation of oxygen defects in calciumdifluoride Original Research Article
Author/Authors
Janis Sils، نويسنده , , Evgeny Radzhabov، نويسنده , , Michael Reichling، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
6
From page
420
To page
425
Abstract
We study the aggregation of oxygen dipoles well dispersed in a CaF2 crystal upon annealing at temperatures ranging from 370 to 420 K. The concentration of oxygen dipoles is monitored by measuring the intensity of the ionic thermocurrent peak as well as by absorption and luminescence spectroscopies. Results from three methods agree within experimental error and yield an activation energy of (1.2±0.1) eV for the diffusion of isolated oxygen centres in the crystal.
Keywords
A. Optical materials , D. Defects , D. Colour centres , D. Luminescence , D. Optical properties
Journal title
Journal of Physics and Chemistry of Solids
Serial Year
2007
Journal title
Journal of Physics and Chemistry of Solids
Record number
1309642
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