Radio-Luminescence of Defects and Impurity Ions in Magnesium Aluminates Spinel Crystals
The investigations of radio-luminescence (RL) in magnesium aluminates spinel crystals at variation of the time, intensity of X-irradiation and temperature of sample were provided. There were registered three prominent RL bands related to electron-hole recombination process at anti-site defects, emission of Mn2+-ions and emission of Cr3+-ions. The kinetics of the growth of indicated RL emissions show the competing processes of the capture of free charge carriers generated at irradiation by intrinsic defects and impurity ions.
Sergii Ubizskii, Leonid Vasylechko and Yaroslav Zhydachevskii
V. Gritsyna et al., "Radio-Luminescence of Defects and Impurity Ions in Magnesium Aluminates Spinel Crystals", Solid State Phenomena, Vol. 200, pp. 203-208, 2013