白光LED用蓝色荧光粉NaLaMgWO_6:xTm^(3+)的制备与发光性能的研究  

Preparation and luminescent properties of a blue-emitting NaLaMgWO_6:xTm^(3+) phosphors for white light-emitting-diodes

作　　者：宁青菊[1] 李向龙[1] 乔畅君[1] 张世英[2] 胡昌志[1] 刘波[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021 [2]长沙大学应用化学与环境科学系,湖南长沙410003

出　　处：《陕西科技大学学报（自然科学版）》2014年第3期46-50,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅自然科学专项科研计划项目(11JK08370);陕西科技大学博士科研启动基金项目(BJ08-07)

摘　　要：采用固相法,在氧化气氛下制备合成了NaLaMgWO6:xTm3+荧光粉。利用X射线衍射仪、电子扫描显微镜以及光谱分析仪,研究了浓度、温度以及保温时间对NaLaMgWO6:xTm3+荧光粉结构和发光性能的影响.结果表明:Tm3+的少量掺杂和温度并未对NaLaMgWO6的晶体结构产生影响,且制备的NaLaMgWO6:xTm3+荧光粉粒度均匀.NaLaMgWO6:xTm3+荧光粉发射主峰位于485nm,呈现出宽谱蓝光发射.The NaLaMgWO6：xTm^3＋phosphors were synthesized via solid-state method in oxidative atmosphere.Their structures and luminescent properties were investigated with Xray diffraction,the scanning electron microscope and photoluminescence spectra.The sample′ s properties can be improved by setting different concentration,temperature and soaking time.It is investigated that the crystal structure of the NaLaMgWO6samples have no relationship with the doping of Tm3＋or sintering temperature.The experimental results have homogeneous morphologies.It′s emission peak is at about 485nm,the characters of the new material shows a wide blue emission spectra.

关 键 词：固相法 NaLaMgWO6 结构 发光性能 

分 类 号：TB34[一般工业技术—材料科学与工程]