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In recent years,nanostructured materials,for its unique optical,electronic or structural properties,have been extensively studied and used.Significant attention has been paid to rare-earth-ions doped nanoparticles to develop the potential applications in photonic and biophotonic fields.Among them,rare-earth-ions doped yttrium oxides (Y2O3) exhibit excellent luminescent efficiency,color purity,and chemical and thermal stability.[1-2]