Naumov A.K.
1,2, Tselishcheva E. Yu.1,3, Tselishchev D. I.1,4, Aglyamov R.D.
1,2
1Kazan Federal University, Kazan, Russia
2Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, Kazan, Russia
3Transneft Automation and Metrology, JSC, Moscow, Russia
4VNIIR – a branch of Federal State Unitary Enterprise “All-Russian Research Institute for Metrology named after D.I. Mendeleev”, Kazan, Russia
Email: aknau@mail.ru, katerina.fizfak@rambler.ru, dimagan@yandex.ru, aglyam92@mail.ru
The results of investigations into the optical properties of color centers formed under X-ray irradiation in nominally pure KY3F10 crystals and those doped with Ce3+ ions are presented. The types of color centers and their characteristic evolution time constants have been studied. The influence of Ce3+ ion doping on the evolution of color centers has been examined. A comparison of the parameters of color centers in the doped and nominally pure crystals is provided. X-ray induced color centers in the nominally pure crystal have been identified as F- and F2-type centers, whereas in the doped crystal, - F-, F2-, and FA-type centers are observed. In KY3F10 crystals doped with Ce3+ ions, the recombination times of free charge carriers associated with F-type color centers differ significantly from the recombination times of charges associated with these types of color centers in the nominally pure crystal. In the doped crystal (in comparison to the nominally pure one), the maxima of the absorption bands of the color centers are shifted towards the shorter wavelength region. Keywords: KY3F10, Ce, color centers, types of color centers, optical transmission spectra, energy state diagram.
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