A detailed study has been carried out on the optical properties of intrinsic colour centres, created in LiF crystals under irradiation with low-penetration 3 keV electrons. The kinetics of the production of F and M centres, determined from optical absorption measurements, exhibits a typical three-stage structure and an evident saturation at high doses. The quantitative evaluation of the kinetic parameters is in excellent agreement with the predictions of the most comprehensive theoretical model. A comparison of the effects of irradiation at different temperatures, determined from absorption and photoluminescence spectra, allows one to deduce the conditions for preferential formation of F2or F+3defects in LiF crystals.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
Baldacchini, G., D'Auria, G., Montereali, R. M., & Scacco, A. (1998). Colour centres induced in LiF by low-energy electrons. Journal of Physics Condensed Matter, 10(4), 857 - 867. https://doi.org/10.1088/0953-8984/10/4/014