Microwave Assisted Sintering and Photoluminescence Properties of BaaSi6OleNe：Eu^2＋ Green Phosphors
微波法合成Ba_3Si_6O_(12)N_2:Eu~(2+)绿色氮氧化物荧光粉及其光学性能研究作者机构：Structural and Functional Integration of Ceramics Group the Division of Functional Materials and Nanodevices Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China Institute of Materials Shanghai University Shanghai 200072 China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shang- hai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
出 版 物：《无机材料学报》 (Journal of Inorganic Materials)
年 卷 期：2015年第30卷第3期
页 面：330-336页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：Research Fund for the Postdoctoral Advanced Program of Zhejiang Province Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure 浙江省自然科学基金 Ningbo Natural Science Foundation, China
主 题：Ba3S16012N2:Eu^2+ phosphors oxynitride microwave assisted sintering photoluminescence
摘 要：Eu^2＋-doped Ba3Si6012N2 green phosphors were prepared by microwave assisted sintering method at 1275℃ for 4 h, while the counterparts using conventional solid-state reaction method were synthesized at temperature higher than 1300℃ and for to 10 h. Microwave assisted sintering could reduce the activation energy and enhance the diffu- sion rate, thus greatly improved the sintering. Moreover, the influence of Si3N4 content on phase formation, morphol- ogy, absorption, and quantum efficiency, and photoluminescence properties of phosphors were studied. As a result, the Ba3Si6OI2N2：Eu^2＋ samples sintered by microwave assisted sintering method have a higher phase purity and photo- luminescence intensity under ultraviolet excitation as compared with samples sintered in the conventional tube furnace The proposed method is a potential preparation method for the oxynitride phosphors with strong photoluminescence and high phase purity.
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