Effect of dopant concentration and particle size on fluorescence properties of Y2O3:Eu3+ derived in presence of NIPAM/AAc copolymer

Y₂O₃:Eu³⁺ nano phosphors (about 65 nm in size) were prepared via co-precipitation method by using co-polymer NIPAM/AAc as a template with narrow size distribution. The aim of the paper is to indicate the co-polymer influence on size and luminescence characteristics of nano phosphors. In this respect, phase content and morphology were characterized by X-ray diffraction and transmission electron microscopy. All the powders were well crystallized and the particles were clearly spherical with good dispersibility. Luminescence measurements were used to investigate the role of precursor in powders and the utmost luminescence intensity was observed at 4 mol% of Eu³⁺ while the quenching concentration of Eu³⁺ ions has occurred at 5 mol%.