Integrated chemical process for exothermic wave synthesis of high luminance YAG:Ce phosphors
作者： CW Won , HH Nersisyan , HI Won , JW Youn , None
DOI: 10.1016/J.JLUMIN.2011.05.029
关键词: Potassium 、 Dissolution 、 Exothermic reaction 、 Analytical chemistry 、 Phosphor 、 Dispersity 、 Luminescence 、 Mineralogy 、 Urea 、 Combustion 、 Chemistry
摘要: Abstract In this paper, high-luminance yellow-emitting Y 3 Al 5 O 12 :Ce 3+ phosphor (YAG:Ce) microparticles were prepared in a solid flame using 1.425Y 2 +2.5Al +0.15CeO + k (KClO +urea)+ m NH 4 F precursor mixture (here is the number of moles KClO +urea red-ox mixture, and F). The self-sustaining combustion process for entire reaction sample was provided by heat generated from mixture. Parametric studies demonstrated that maximum temperature wave varied 885 to 1200 °C =2.0–3.0 mole =0–1.5 mole. X-ray analysis results showed product obtained consisted KCl phases. Therefore, after dissolving potassium chloride distillated water, pure-phase YAG:Ce powder obtained. as-prepared particles had diameters 10–25 μm good dispersity exhibited luminescence properties comparable those powders conventional high-temperature processing.
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