摘要
实验以聚乙二醇为络合剂,采用水热法制备了发光性能优越的稀土离子掺杂的Ba WO4纳米晶.研究了不同pH值、反应温度和时间对样品的影响,为确定最佳制备工艺.设计多组平行实验以观察发光特性的区别.并通过对平行实验结果的分析研究达到对掺杂方案、实验方法的最终确定,分析中运用X射线衍射仪、扫描电镜等对制备的样品形貌结构进行了表征,通过对样品结构进行分析来实现对发光效能的差异做出解释,并最终获得最优实验方案.当pH=9,晶化温度为200℃,晶化时间为12 h.Yb3+/Tm3+为7 1,Tm3+离子浓度为1.0 mol%时,样品的发光效果最佳.
In this paper,BaWO 4 powders with ideal luminescence properties were synthesized by hydrothermal method,using polyethylene glycol as a complexing agent.The effects of pH,reaction temperature and reaction time on synthesis of samples were studied.Parallel tests were used to observe the differences.The results were used to determine the best method.The products are characterized by X-ray diffraction and scanning electron microscope.The results show that the luminous intensity is best when the pH=9,T=200℃,and time is 12 hours,concentration ratio of Yb 3+/Tm 3+is 7:1,doping concentration of Tm 3+ions is 1.0mol%.
作者
苏吉益
曲铭镭
马宏图
SU Ji-yi;QU Ming-lei;MA Hong-tu(College of Materials Science and Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China;College of Sciences,Jilin Institute of Chemical Technology,Jilin City 132022,China)
出处
《吉林化工学院学报》
CAS
2018年第3期52-57,共6页
Journal of Jilin Institute of Chemical Technology
关键词
稀土掺杂
纳米
平行实验
制备方法
rare erth doped
nano
parallel experiment
preparation method
