| 白光LED用MSrAl3O7:Eu2+(M=Y,La,Gd)绿色发光材料合成及其光学性能 |
| |
| 引用本文： | 夏志国,杜海燕,孙家跃,王雪峰. 白光LED用MSrAl3O7:Eu2+(M=Y,La,Gd)绿色发光材料合成及其光学性能[J]. 功能材料, 2009, 40(9) |
| |
| 作者姓名： | 夏志国 杜海燕 孙家跃 王雪峰 |
| |
| 作者单位： | 1. 中国地质大学(北京)材料科学与工程学院,北京,100083
2. 北京工商大学,化学与环境工程学院,北京,100048 |
| |
| 基金项目： | 国家自然科学基金资助项目(20876002);;北京市自然科学基金资助项目(2082009,20091002);;北京市属市管高等学校“人才强教”计划资助项目 |
| |
| 摘 要： | 采用传统的高温固相合成技术制备出一系列组成为MSrAl3O7:Eu2+(M=Y,La,Gd)的新型绿色发射荧光体.通过X射线衍射(XRD)研究其晶体结构发现:MSrAl3O7:Eu2+系列荧光体属于M2O3-SrO-Al2O3赝三元体系的稳定结晶相.荧光光谱测试表明:MSrAl3O7:Eu3+(M=Y、La、Gd)材料均是优良的白光LED用绿色荧光体,可被近紫外(300～450nm)有效激发,产生较强的绿色发射光,发射主峰位于517nm左右,样品的紫外-可见(UV-vis)光谱进一步证实了其有效吸收近紫外光的特征.研究还发现,在MSrAl3O7:Eu2+(M=Y、La、Gd)系列荧光体中,LaSrAl3O7:Eu2+具有最强的绿色发射光,进一步地比较不同温度下LaSrAl3O7:Eu2+材料的结构与光谱特性表明,1400℃合成的样品具有稳定的结构和最佳的发光性能.
|
| 关 键 词： | 白光LED 绿色发光材料 光致发光 |
Synthesis and optical properties of green-emitting MSrAl_3O_7:Eu~(2+)(M=Y,La,Gd) phosphors for white light-emitting diodes |
| |
| XIA Zhi-guo , DU Hai-yan , SUN Jia-yue , WANG Xue-feng. Synthesis and optical properties of green-emitting MSrAl_3O_7:Eu~(2+)(M=Y,La,Gd) phosphors for white light-emitting diodes[J]. Journal of Functional Materials, 2009, 40(9) |
| |
| Authors: | XIA Zhi-guo DU Hai-yan SUN Jia-yue WANG Xue-feng |
| |
| Affiliation: | 1.School of Materials Sciences and Technology;China University of Geosciences;Beijing 100083;China;2.College of Chemistry and Environmental Engineering;Beijing Technology and Business University;Beijing 100048;China |
| |
| Abstract: | A series of green-emitting phosphors with compositions of MSrAl3O7:Eu2+(M=Y,La,Gd) were prepared by the traditional solid-state method.Their structural phases were investigated using X-ray diffraction(XRD) technique,and it was found that these phosphors belonged to some stable crystal phase in M2O3-SrO-Al2O3 pseudo-ternary system room-temperature optical properties for MSrAl3O7:Eu2+(M=Y,La,Gd) phosphors were analyzed by the UV-vis diffuse reflectance spectroscopy,excitation and emission spectroscopy.It was ... |
| |
| Keywords: | white LED green luminescence materials photoluminescence |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
