Eu2+, Mn2+, Sr2+ Tri-doped BaMgAl10O17 Phosphor: Solution Combustion Synthesis and Photoluminescence Properties
张长伟 上海应用技术大学, 材料科学与工程学院, 上海 201418  
丁艳花 上海应用技术大学, 材料科学与工程学院, 上海 201418  
张娜 上海应用技术大学, 材料科学与工程学院, 上海 201418 
张建勇 上海应用技术大学, 化学与环境工程工程学院, 上海 201418 
房永征 上海应用技术大学, 材料科学与工程学院, 上海 201418  
张骋 上海应用技术大学, 材料科学与工程学院, 上海 201418  
摘要: 在600℃温度下,采用液相燃烧法合成了Sr2+、Eu2+和Mn2+三掺的BaMgAl10O17(BAM)蓝绿荧光粉。用XRD、SEM和荧光光谱仪分别分析和表征该荧光粉的物相、形貌和光致发光性能。结果表明,液相燃烧法合成BAM的温度明显低于传统的高温固相合成法;合成的纳米棒均匀、无团聚现象;荧光光谱仪分析表明Eu2+、Mn2+离子间存在能量传递,且Sr2+能有效提高BAM的发光强度,约为固相法制备荧光强度的1.8倍。BAM:0.1Eu2+,0.04Mn2+,0.05Sr2+色坐标为(0.146,0.250),属于蓝绿光。
关键词: 燃烧合成法  BAM:Eu2+,Mn2+  发光材料  蓝绿色荧光粉
基金项目: 国家自然科学基金(No.51472162,21503081)、上海应用技术大学引进人才启动基金(No.YJ2015-32)和上海应用技术大学复合材料学科建设项目(No.10210Q140001)资助。
Abstract: Sr2+, Eu2+ and Mn2+ tri-doped BaMgAl10O17 (BAM) phosphors that emitting the blue-green light are prepared by solution combustion synthesis at 600℃. X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) are employed to measure the powders crystallinity, morphology and luminescent properties, respectively. The results show that the formation temperature of the BAM phase by the solution combustion synthesis (SCS) method is significantly lower than that of a high temperature solid state (HTS) reaction. The nanorods of SBAM:Eu2+, Mn2+ without aggregation and well distribution are synthesized successfully. The well-dispersed morphology of the SCS-derived phosphors is beneficial to the improvement of PL property. While Sr2+ ions are introduced, the PL property have been further enhanced, and the PL intensity can up to 1.8 times as high of that BAM specimen obtained by the HTS method. The xy CIE chromaticity coordinates of SBAM:0.1Eu2+, 0.04Mn2+ phosphor is presented at (0.146, 0.250), located at the blue-green reign.
投稿时间:2016-04-01 修订日期:2016-09-20
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