- Luminescent Properties of Y2O3:Eu Red Phosphor Particles Prepared by Microwave Synthesis
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Meriel Chua Maniquiz, Tae-Won Kang, Jin-Han Ahn, Kyeong-Youl Jung
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J Korean Powder Metall Inst. 2009;16(3):203-208.
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DOI: https://doi.org/10.4150/KPMI.2009.16.3.203
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 Abstract
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- Y_2O_3:Eu red phosphor was prepared by microwave synthesis. The crystal phase, particle morphology, and luminescent properties were characterized by XRD, SEM, and spectrofluorometer, respectively. The prepared Y_2O_3:Eu particles had good crystallinity and strong red emission under ultravioletet excitation. The crystallite size increased with calcination temperature and satuarated at 1200°C. The primary particle size initially formed was varied from 30 to 450 nm with microwave-irradiation (MI) time. It was found that the emission intensity of Y_2O_3:Eu phosphor strongly depends on the MI time. In terms of the emission intensity, it was recommended that the MI time should be less than 15 min. The emission intensity of Y_2O_3:Eu phosphor prepared by microwave syntehsis strongly depended on the crystallite size of which an optimal size range was 50-60 nm.
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