Luminescent properties of red long persistence phosphors, BaMg2Si2O7:Eu2+, Mn2+
Luminescent properties of red long persistence phosphors, BaMg2Si2O7:Eu2+, Mn2+
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DOI：
10.1016/j.jallcom.2005.03.092
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发表时间：
2006-02-09
影响因子：
6.2
通讯作者：
Sato, M
中科院分区：
文献类型：
--
作者：
Abe, S;Uematsu, K;Sato, M
采用传统的固相反应法制备了BaMg_2Si_2O_7：Eu ~（2+），Mn ~（2+）红色长余辉发光材料。仅掺杂Eu 2+的荧光粉发出1400 nm的紫光;仅掺杂Mn 2+的荧光粉发出几乎不可见的红光。Eu 2+和Mn 2+掺杂的荧光粉在400 nm和660 nm处有两个发射峰，肉眼可见的荧光为红色。这些事实表明从Eu ~（2+）到Mn ~（2+）的能量转移。非化学计量的共掺杂的磷光体与不足的Ba组分显示出长余辉磷光与红色。(c)2005 Elsevier B. V.保留所有权利。
Long persistence phosphors of BaMg2Si2O7:Eu2+, Mn2+, with red emission were prepared using a conventional solid state reaction. Phosphors doped only With Eu2+ emitted 1400 nm violet light; those doped only with Mn2+ emitted red light that was hardly visible. Phosphors doped with both Eu2+ and Mn2+ showed two emission peaks of 400 and 660 nm, exhibiting a reddish luminescence to the naked eye. These facts suggested an energy transfer from Eu2+ to Mn2+. Non-stoichiometric co-doped phosphors with a deficient Ba component showed long persistence phosphorescence with reddish color. (c) 2005 Elsevier B.V. All rights reserved.