Synthesis of Y2O3 phosphor by a hydrolysis and oxidation method
来源期刊：JOURNAL OF RARE EARTHS2015年第7期
论文作者：王晓旭 胡业旻 孟详海 李瑛 朱明原 金红明
文章页码：706 - 711
摘 要：A novel and convenient hydrolysis and oxidation method was first used in preparation of carbon contained Y2O3 phosphor powders. The alloy was hydrolyzed in deionized water and the obtained Y（OH）3 powders were heat treated in air atmosphere. The final products- Y2O3 powders were micron clusters which were aggregated by hundreds of nanoparticles with the size of about 5 nm. The chemical composition, structural and morphological features of the samples were characterized by means of X-ray powder diffraction（XRD） analysis, transmission electron microscopy（TEM）, Fourier-transform infrared（FT-IR） spectra, X-ray photoelectron spectra（XPS） and carbon sulfur analyzer. The obtained powders showed good bluish-white photoluminescence（PL） emissions（ranging from 430 to 600 nm, peaking at 468 nm and 578 nm） under the xenon light excitation. The luminescent mechanism was ascribed to the carbon impurities in the Y2O3 host.
王晓旭1，胡业旻1，孟详海2，李瑛1，朱明原1，金红明1
1. Laboratory for Microstructures, School of Materials Science and Engineering, Shanghai University2. Department of Mechanical Engineering, Tangshan Polytechnic College
摘 要：A novel and convenient hydrolysis and oxidation method was first used in preparation of carbon contained Y2O3 phosphor powders. The alloy was hydrolyzed in deionized water and the obtained Y（OH）3 powders were heat treated in air atmosphere. The final products- Y2O3 powders were micron clusters which were aggregated by hundreds of nanoparticles with the size of about 5 nm. The chemical composition, structural and morphological features of the samples were characterized by means of X-ray powder diffraction（XRD） analysis, transmission electron microscopy（TEM）, Fourier-transform infrared（FT-IR） spectra, X-ray photoelectron spectra（XPS） and carbon sulfur analyzer. The obtained powders showed good bluish-white photoluminescence（PL） emissions（ranging from 430 to 600 nm, peaking at 468 nm and 578 nm） under the xenon light excitation. The luminescent mechanism was ascribed to the carbon impurities in the Y2O3 host.
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