HIGH YIELD NANOPARTICLES SYNTHESIS OF EUROPIUM-DOPED YTTRIUM OXIDE RED-PHOSPHOR USING AN ORGANIC COMPOUND

Abstract

This paper reports an approach for enhancing the luminescent properties of Y2O3:Eu3+ nanophosphors with cellulose, using a liquid phase precursor (LPP) process. The nanosized [Formula: see text] particles showed a powder X-ray diffraction pattern, corresponding to the reference, and were highly crystalline. The grain sizes of the samples synthesized at 600°C for 1 h were estimated to be approximately 19 nm. The particle sizes of the samples increased with increasing synthesis temperature and the morphology was cleaned and without impurities. In addition, all the samples had a smaller particle size than that of the commercial product. The PL spectrum consisted of weak bands at 581, 587, 593, and 599 nm, corresponding to the 5 D 0 → 7 F 1 transition, and sharp peaks with a maximum intensity occurring at approximately 610 nm, due to the 5 D 0 → 7 F 2 transition of Eu 3+. These results suggest that Y 2 O 3: Eu 3+ is a promising alternative red-emitting phosphor for high efficiency resolution display applications.