BaMgAl_(10)O_(17)∶Eu^(2+)发射光谱的谱峰形状(英文)  

The Lineshape of Emission Spectra on BaMgAl_(10)O_(17)∶Eu^(2+) Phosphor

作　　者：印琰[1] 唐永波[1] 张宝平[2] 王海波[2] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]南京工业大学电光源材料研究所,江苏南京210005

出　　处：《发光学报》2009年第2期131-134,共4页Chinese Journal of Luminescence

基　　金：supported by Research on the Open of Inorganic and New Composite Materials Key Laboratory of Jiangsu Province(wjjqfhxcl200605)~~

摘　　要：BaMgAl10O17∶Eu2+(BAM)是三基色荧光灯和等离子显示用荧光粉中的蓝色组分。用晶格弛豫和多声子跃迁理论研究了BAM发射光谱的谱峰分布。结果表明可以用三个高斯函数很好地拟合BAM的宽带发射。BAM的宽带发射可能由分布在BaMgAl10O17晶格中三个不同位置的Eu2+的能级跃迁构成。三个Eu的发光中心分别是Beevers-Ross位和anti-Beevers-Ross位,第三个Eu2+的发光中心可能是位于尖晶石基块中的mid-oxygen(mo)位。BaMgAl10 O17： Eu^2＋ （BAM） is the blue phosphor component of three-color fluorescent lamps and plasma display panels（PDP）. In present paper the emission spectra lineshape of BAM were investigated by using lattice rela- tion and theory of muhiphanan transitions. The result indicated that the broadening emission band of BAM can be fit- ted by three Gaussian functions very well, the transitions from three different site of Eu^2＋ in the BAM lattice forms the BAM emission spectra, the two of the emission centers are assigned to Eu^2＋ at normal Beevers-Ross sites and anti- Beevers-Ross sites, respectively, but the third luminescence center may be located at mid-oxygen （mo）sites.

关 键 词：BAM 线型状 多声子跃迁 发射谱 

分 类 号：O482.3[理学—固体物理]