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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
收稿日期:2008-08-25,
修回日期:1900-01-02,
网络出版日期:2009-04-30,
纸质出版日期:2009-04-30
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印 琰, 唐永波, 张宝平, 等. BaMgAl10O17 : Eu2+发射光谱的谱峰形状[J]. 发光学报, 2009,30(2):131-134.
YIN Yan, TANG Yong-bo, ZHANG Bao-ping, et al. The Lineshape of Emission Spectra on BaMgAl10O17 : Eu2+ Phosphor[J]. Chinese journal of luminescence, 2009, 30(2): 131-134.
BaMgAl
10
O
17
: Eu
2+
(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BaMgAl
10
O
17
晶格中三个不同位置的Eu
2+
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Eu
2+
的发光中心可能是位于尖晶石基块中的mid-oxygen(m
o
)位。
BaMgAl
10
O
17
: 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 relation and theory of multiphonon transitions.The result indicated that the broadening emission band of BAM can be fitted 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 (m
O
)sites.
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. Ellen A, Zwaschka F, Kummer F, et al. Sm2+ in BAM:fluorescent probe for the number of luminescence sites Eu2+ in BAM [J]. J. Lumin., 2001, 93 (2):147-153.
. Mishra K C, Raukas M, Ellens A, et al. A scattered wave modes of electronic structure of Eu2+ in BaMgAl10O17 : Eu2+ and associated excitation processes [J]. J. Lumin., 2002, 96 (2-4):95-105.
. Valerie Pike, Samuel Patraw, Anthony, et al. Defect chemistry and VUV optical properties of the BaMgAl10O17 : Eu2+-Ba0.75Al11O17.25 : Eu2+ solid solution [J]. J. Solid State Chem., 2003, 173 (2):359-366.
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