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Photoluminescence of Y2O3:Bi nanopowder synthesized by the modified sol–gel method is studied using time-resolved luminescence spectroscopy in the 4.2–300K temperature range. Bi3+ ions are substituted for Y3+ ions in two different crystal lattice sites, one having S6 symmetry (Bi(S6)) and the other C2 symmetry (Bi(C2)). The luminescence characteristics of these two centers are found to have strongly...
The work describes experimental results on Bi3+ luminescence in yttrium oxide (YO) and yttrium-aluminum oxides namely Y3Al5O12 (YAG), YAlO3 (YAP) and Y4Al2O9 (YAM) in the form of nanopowders synthesized by sol-gel method.
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