ポリマー溶液を用いた蛍光体 Y2O3: Eu3+ ナノ粒子の新規合成プロセス

Synthesis of europium ion doped yttrium oxide (Y2O3:Eu3+) phosphor nanoparticles using a relatively high molecular weight polyethylene glycol is reported. Y2O3: Eu3+ materials could be prepared by simply heating in air provided that, water-soluble polymer be added into solutions containing metal nitrates. The polymer was expected to form carbonaceous materials around the produced primary particles to reduce the tendency of those particles to agglomerate. The carbonaceous materials could be removed by heating at higher temperatures, resulting in softly-agglomerated particles in the size range of 20-100 nm. The effect of synthesis parameters on particle morphology, crystallinity, and photoluminescence properties was investigated.