Synthesis of Nano-Sized Oxide Phosphor Particles Using an Ion-Exchange Polymer/Water/Oil Emulsion Method

Hiroyuki Sano; Seiichiro Harada; Mikio Shimizu; Makoto Kuwabara

doi:10.4028/www.scientific.net/KEM.421-422.494

Paper Titles

Effect of Organic Compound on the Preparation of C/LiFePO₄ Powders by Spray Pyrolysis
p.475

Oxygen Reduction Reaction Activity of Pyrochlore Oxide Electrocatalysts Prepared by Precipitation Method
p.479

Screen Printing Parameter Effect on the Surface Roughness Measurement of Printed Gold Paste on LTCC Tape
p.485

Synthesis and Characterization of Samarium Doped Ceria(Ce_0.8Sm_0.2O_1.9) Nano-Particle by Aerosol Plasma Pyrolysis
p.490

Synthesis of Nano-Sized Oxide Phosphor Particles Using an Ion-Exchange Polymer/Water/Oil Emulsion Method
p.494

Low Temperature Synthesis of TiO₂ from Acid Solution
p.498

Fabrication of PbTiO₃ Nanocrystals on Atomically Flat Sapphire Substrates by Sputtering
p.502

Particle Structure Analysis of Highly-Dispersed Barium Titanate Nanoparticles Obtained from Barium Titanyl Oxalate Nanoparticles and their Dielectric Properties
p.506

Preparation of Barium Titanate Nanoparticle Thin Films by the Electrophoretic Deposition Method Using Polyacrylic Acid as a Charge-Compensating Agent
p.510

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Synthesis of Nano-Sized Oxide Phosphor Particles Using an Ion-Exchange Polymer/Water/Oil Emulsion Method

Abstract:

We synthesized nano-sized Eu-doped Y2O3 (Y2O3:Eu) phosphor powder by an ion-exchange po-lymer/water/oil (W/O) emulsion method using carboxymethyl cellulose (CMC) as the ion-exchange polymer, in which the CMC-(Y, Eu) gel formed was calcined at 800°C in air to convert into Y2O3:Eu particles. The obtained phosphor powder consists of unagglomerated particles with sizes in the range of 30-80 nm and exhibits strong red emission at 612 nm. This CMC/W/O method for producing nano-sized oxide powder has significant advantages over conventional solid-phase and chemical solution-based methods because this method can provide unagglomerated nanoparticles of oxide phosphor without employing any mechanical pulverizing process for reducing the particles’ size into the nanometer range; mechanical grinding, such as ball milling, of phosphor powders has been well known to cause a significant degradation of their luminescent properties.