کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1649157 | 1007575 | 2010 | 4 صفحه PDF | دانلود رایگان |
The surface of (Y,Gd)BO3:Eu3+ phosphor, red-emitting source in the plasma display panel (PDP), was dual-coated with SiO2 and Al2O3 nano-particles. The surface modification of the phosphor was performed by a modified sol–gel method using the colloidal alumina and silica as surface coating precursors. We observed the oxide nano-particles on the surface of the single coated and the dual-coated phosphors and it was found that the luminance intensity was increased in the photoluminescence (PL) by a suppression of the nonradiative recombination via surface defects. The experimental results suggest that the surface modification of phosphors with nano-particles of the oxides leads to an increase in the luminance intensity of phosphors in the PDP (plasma display panel) and the gas discharge lamps.
Journal: Materials Letters - Volume 64, Issue 11, 15 June 2010, Pages 1264–1267