Sol-gel method and optical properties of Ca12Al14O32F2:Eu3+ red phosphors
来源期刊：Journal of Rare Earths2015年第9期
论文作者：彭海龙 高强盛 蒙丽丽 张丽霞 庞起 梁利芳
文章页码：927 - 932
摘 要：Ca12Al14O32F2:Eu3+ red phosphors were prepared by the sol-gel method with CF3 COOH as the fluorine source. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectra, and photoluminescence spectra, as well as thermogravimetric and differential thermal analysis were utilized to characterize the samples. All the samples were single phase with a cubic structure. The as-obtained Ca12Al14O32F2:Eu3+ red phosphors consisted of nanoparticles with sizes of approximately 40–100 nm. Under the excitation of UV light, Ca12Al14O32F2:Eu3+ exhibited the characteristic emissions of Eu3+, and the effect of annealing temperature, annealing time, and CF3 COOH and Eu3+ concentrations on the luminescence intensity were discussed in detail.
彭海龙1，高强盛1，蒙丽丽1，张丽霞1，庞起2，梁利芳1
1. College of Chemistry and Materials, Guangxi Teachers Education University2. School of Chemistry and Chemical Engineering,Guangxi University
摘 要：Ca12Al14O32F2:Eu3+ red phosphors were prepared by the sol-gel method with CF3 COOH as the fluorine source. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectra, and photoluminescence spectra, as well as thermogravimetric and differential thermal analysis were utilized to characterize the samples. All the samples were single phase with a cubic structure. The as-obtained Ca12Al14O32F2:Eu3+ red phosphors consisted of nanoparticles with sizes of approximately 40–100 nm. Under the excitation of UV light, Ca12Al14O32F2:Eu3+ exhibited the characteristic emissions of Eu3+, and the effect of annealing temperature, annealing time, and CF3 COOH and Eu3+ concentrations on the luminescence intensity were discussed in detail.
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