The stable formation of several colour centres (CCs) has been investigated in lithium fluoride (LiF) single crystals irradiated at room temperature (RT) and at 213 K by 5 MeV electrons with doses from 1019to 1023eV/cm3. The temperature during irradiation influences the production of aggregate defects, in particular the ratio between the F3+and F2laser active centres and the amount of parasitic complex defects. Optical absorption and photoluminescence spectra allow clarifying the role of different aggregate defects on the emission properties of the F3+and F2centres at concentrations up to 1018cm-3. © 2002 Elsevier Science Ltd. All rights reserved.
|Pages (from-to)||216 - 220|
|Number of pages||5|
|Journal||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - 2002|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Baldacchini, G., Bonfigli, F., Menchini, F., & Montereali, R. M. (2002). High concentrations of aggregate colour centres in heavily irradiated LiF crystals. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 191(1-4), 216 - 220. https://doi.org/10.1016/S0168-583X(02)00562-1