ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 45, Number 3
JKCSEZ 45(3)
June 20, 2001 

Europium activated yttrium oxide (Y₂O₃ : Eu) is extensively applied to red phosphor for Flat Panel Display because of its high efficiency and the thermal and chemical stability. Flat Panel Display screen which have a high resolution and high efficiency needs to the phosphors of ideally small size spherical particle. In this study, we prepared a Y₂O₃ : Eu phosphor using polymeric precursor methods and investigated the codoping effect by introducing the group 1 or 2 elements to Y₂O₃ : Eu phosphor in view of improvement of luminance efficiency.