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Fig. 3. (Color online) Raman spectra of the Y2O3:Pr3+ powders at different (a) Pr3+ doping concentrations and (b) annealing temperatures and (c) pure Y2O3 powder.
New Phys.: Sae Mulli 2021;71:568~573 https://doi.org/10.3938/NPSM.71.568
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