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Thermal stability study of BaAl2Si2O8 : Eu2+ phosphor using its polymorphism for plasma display panel application
No full textWe have evaluated the thermal stability of BaAl2Si2O8:Eu2+ (BAS:Eu2+) phosphor using its polymorph property and hexagonal and monoclinic crystal structure, depending upon firing temperature for plasma display panel application. When BAS:Eu2+ samples having each characteristic crystal structure were baked at 500 degrees C in air for 30 min, the baked monoclinic BAS:Eu2+ showed the same photoluminescence (PL) intensity as the fresh one, whereas the baked hexagonal one lost its PL intensity significantly, corresponding to about 34%. From analyses of electron spin resonance on Eu2+ and Rietveld refinement, the difference of thermal stability between hexagonal and monoclinic BAS:Eu2+ could be ascribed to both the crystal structure of host materials and the average interatomic distances between the Eu2+ ion and oxygen which plays the key role of shield for Eu2+ ions against an oxidation atmosphere.This study was supported by Korea
Science and Engineering Foundation (KOSEF) and Ministry of
Science & Technology (MOST), Korean government, through
its National Nuclear Technology Program
Combined Rietveld refinement of CaMgSi2O6 : Eu2+ using X-ray and neutron powder diffraction data
No full textThe authors are grateful to Dr S. W. Jang at the Hanaro
Center in Korea Atomic Energy Research Institute for
their assistance in collecting neutron powder diffraction
data. This work was partially supported by the Centre for
Nanoscale Mechatronics and Manufacturing
Thermal stability study of Eu2+-doped BaAl2Si 2O8 phosphor using polymorphism for plasma display panel applications
Full text linkThis study was supported by Korea Science and Engineering Foundation (KOSEF) and Ministry of Science & Technology (MOST), Korean government, through its National Nuclear Technology Program
In situ Neutron powder diffraction analyses of BaMgAl10O 17:Eu2+ phosphor with increasing temperature
No full textThermal stability of (Sr1-x,Bax)3MgSi 2O8:Eu2+ phosphor for plasma display panel applications
No full text
Luminescence property of Eu2+-doped BaPO4 phosphor under ultraviolet and vacuum ultraviolet excitation
No full textDistinctive Roles of Two Different Dispersants on Synthesis of Nanocrystalline Y2O3:Eu3+ Phosphors and Their Photoluminescence Properties
No full textSynthesis and photoluminescence properties of BaGa2S 4: Eu2+ phosphor for white light-emitting diodes
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