【作者】 王永钱； 冀莉莉； 王娟娟； 袁曦明；

【Author】 Wang Yongqian Ji Lili Wang Juanjuan Yuan Ximing Nano Science and Technology Center,China University of Geosciences,Wuhan 430074,China

【机构】 中国地质大学材料科学与化学工程学院；

【摘要】 采用高温固相法成功合成了 BaMgAl₁₀O₁₇:Mn²⁺绿色荧光粉,选择其最佳化学配比为 Ba_.85MgMn_0.15Al_11.993B_0.007O₁₉。研究了球磨及超声分散等后处理方式对荧光粉发光性能及粒度、形貌的影响,最后得到了颗粒细小均一、分散性能良好、符合等离子平板显示器性能要求的绿色荧光粉产品。样品在紫外激发下的发光性能采用日立 F-4500型荧光分光光度计检测;真空紫外（147nm）激发下的发光性能采用浙大三色真空紫外荧光粉测试系统检测;粒度、形貌用 JSM 扫描电子显微镜检测;晶体结构用日本 RIGARU D/MAX-3B 粉晶衍射仪分析。由各实验条件所得的实验数据及检测结果,确定最佳后处理方式为: 球磨时间5min,球磨介质15%C₂H₅OH;分散时间90min,分散介质15%C₂H₅OH。该荧光粉能够适合等离子平板显示器生产的需要,弥补国内彩色 PDP 荧光粉生产的空白,促进国民经济的发展.更多还原

【Abstract】 BaMgAl₁₀O₁₇:Mn²⁺ green phosphor was prepared by high temperature solid state reaction,and the optimal chemical formula is Ba_0.85MgMn_0.15Al_11.993B_0.007O₁₉.The influences of milling and ultrasonic-dispersal on the luminescent properties and granularity and appearance of the phosphor were investigated,and the green phosphor with free grain and uniform dispersion to adapt to Plasma Display Panels was obtained finally.Hitachi F-4500 fluorescence spectrophotometer was used to measure the luminescent performances of the phosphor,and VUV （Vacuum Ultra Violet ） fluorescence spectroradiomentric system （ZheJiang university Sensing Instruments Co.,LTD.） was used to measure the luminescent performances under 147nm excitation.A Scan electron microscope （TEM） was used to identify the mean size and shape of the particles.X-ray diffraction （XRD） was used to confirm its crystallinenature.According to this study,the optimal after treatment processes were as follows:milling time was 5min,milling medium was 15% C₂H₅OH,dispersal time was 90min and dispersal medium was 15% C₂H₅OH.更多还原