欢迎登录材料期刊网

材料期刊网

高级检索

采用溶胶-凝胶法合成了紫外光激发的钼酸盐基白色荧光粉.用粉末X射线衍射(XRD)和荧光光谱对其结构、发光性能进行了表征,并对其发白光的原理进行了分析.同时详细研究了煅烧温度对所得荧光粉的组成及发光性能的影响,计算了不同温度下得到的荧光粉的色坐标、显色指数和色温.

A novel white light emitting phosphor based on molybdate was synthesized by sol-gol method. The structure and luminescent properties of these phosphors were investigated in details. Effect of annealing temperature on the luminescent properties of these phosphors was analyzed,and the reason for white light emitting was explained. In addition,their CIE chromaticity coordinates,color temperature and color-rendering index Ra have been calculated according to corresponding PL spectra under 280nm radiation.

参考文献

[1] 吴昊,潘跃晓,郭崇峰,张新民,徐剑,王垚浩,余彬海,李绪峰,苏锵.白光LED用稀土荧光粉的制备和性质[J].发光学报,2006(02):201-205.
[2] 赵晓霞,王晓君,陈宝玖,孟庆裕,颜斌,狄卫华.白光LED用红色荧光粉α-Gd2(MoO4)3:Eu的制备及其发光性能研究[J].光谱学与光谱分析,2007(04):629-633.
[3] Zhi-Jun Zhang;Hao-Hong Chen;Xin-Xin Yang .Preparation and luminescent properties of Eu~(3+) and Tb~(3+) ions in the host of CaMoO_4[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2007(1/3):34-40.
[4] 李晓丽,张忠义.稀土发光材料在节能照明领域中的发展概况[J].稀土,2008(02):69-71.
[5] Ryu JH;Choi BG;Yoon JW;Shim KB;Machi K;Hamada K .Synthesis of CaMoO4 nanoparticles by pulsed laser ablation in deionized water and optical properties[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(1):67-70.
[6] 李旭,杨勇,杨志平,关丽,刘冲.Eu3+激活的La2Mo2O9红色荧光粉的制备与性能[J].发光学报,2008(01):93-96.
[7] 郭崇峰;陈涛;栾林 等.溶胶-凝胶法合成LED用红色发光材料R_(2-x)Eu_x(MoO_4)_3(R=Gd,Y,La)及性能研究[J].功能材料,2007,38(A01):200-204.
[8] 林君.溶胶-凝胶法及其在稀土发光材料合成中的应用[J].稀土,1994(01):42.
[9] 廖勇,朱伟,黎学明,莫芸绮,郝小光,马小强.溶胶-凝胶法制备Li(MoO4)2:Eu及表征[J].材料导报,2007(z1):321-324.
[10] Jie Liu;Hongzhou Lian;Chunshan Shi .Improved optical photoluminescence by charge compensation in the phosphor system CaMoO_4:Eu~(3+)[J].Optical materials,2007(12):1591-1594.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%