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柠檬酸络合溶胶-凝胶法制备稀土掺杂蓝色荧光粉
引用本文:肖林久,张宝砚,王双红,贺明睿.柠檬酸络合溶胶-凝胶法制备稀土掺杂蓝色荧光粉[J].东北大学学报(自然科学版),2005,26(9):886-889.
作者姓名:肖林久  张宝砚  王双红  贺明睿
作者单位:1. 东北大学,理学院,辽宁,沈阳,110004
2. 沈阳化工学院,应用化学学院,辽宁,沈阳,110142
基金项目:辽宁省自然科学基金,辽宁省沈阳市科技计划
摘    要:以柠檬酸为络合剂,用溶胶-凝胶法合成了稀土元素掺杂的蓝光荧光粉的BaMgAl10O17:Eu2+.对制备过程进行了研究,并通过红外光谱、热重-差示扫描量热谱和X射线衍射等手段,对干凝胶的构成、热分解特性和BaMgAl10O17:Eu的结晶行为等进行了分析讨论.荧光粉的激发光谱和发射光谱等发光特性的考察结果表明:1 200℃灼烧,可以得到较好的BaMgAl10O17:Eu晶相,其比用高温固相法合成低200℃以上.合成的荧光粉在紫外激发下,荧光粉的最大激发波长为340 nm,最大发射波长454 nm;真空紫外激发的最大激发波长为160 nm,最大发射波长约453 nm.

关 键 词:溶胶-凝胶法  蓝色荧光粉  发光特性  稀土  柠檬酸  
文章编号:1005-3026(2005)09-0886-04
收稿时间:2005-01-02
修稿时间:2005年1月2日

Synthesis of Eu+2-Doped Blue Phosphor and Its Luminescent Performance
XIAO Lin-jiu,ZHANG Bao-yan,WANG Shuang-hong,HE Ming-rui.Synthesis of Eu+2-Doped Blue Phosphor and Its Luminescent Performance[J].Journal of Northeastern University(Natural Science),2005,26(9):886-889.
Authors:XIAO Lin-jiu  ZHANG Bao-yan  WANG Shuang-hong  HE Ming-rui
Institution:(1) School of Sciences, Northeastern University, Shenyang 110004, China; (2) School of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China
Abstract:The Eu2+-doped BaMgAl10O17 blue-emitting phosphors were prepared by sol-gel technique using citric acid as a complextant. FT-IR, TG-DSC and X-ray diffraction (XRD) were used to characterize the composition of dry gel, the pyrogenic characteristic and relevant crystallization behavior. The luminescent effect of the phosphor was discussed by way of excitation and emission spectral analysis. The results revealed that BaMgAl10O17:Eu2+ is crystallized well when the dry gel was sintered at 1200°C, which the temperature of phosphors can be prepared lower 200°C than by way of solid-state method. When the phosphor is excited within UV waveband, wavelengths of maximum excitation and emission are 340 nm, 454 nm, and those are 160 nm and 453 nm within VUV waveband, respectively.
Keywords:sol-gel  blue phosphors  luminescence performance  rare earth element  citric acid
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