Annealing Effect on Self-trapped Exciton Radiation of Nanosized Y₂O₃Ceramics Radioluminescence

Exciton X-Ray Induced Luminescence of Y2O3 Polycrystals Sintered from the Nanopowder

“…The most powerful band in the spectra is the radiation associated with self-trapped exciton (STE) decay [5]. In our previous work, we presented results clearly indicating that additional annealing leads to changes in luminescence in this wavelength band [6]. In the same works, physical reasons were given that can lead to such an effect.…”

“…Experimental studies of Y 2 O 3 exciton luminescence induced by 60 keV X-ray photons were carried out with the samples prepared by sintering technique. The detail description of the experiment and the sample preparation procedure one can find in our previous works [6][7]. The samples were ceramics with the shape of round plates (with a diameter of 10.0 mm and a thickness of 3 mm) with a fine-grained nanoscale structure.…”