Non-rare earth white emission phosphor: Ti-doped MgAl2O4

被引：36
|
作者：
Lim, J. H. [1 ]
Kim, B. N. [2 ]
Kim, Y. [3 ]
Kang, S. [1 ]
Xie, R. J. [2 ]
Chong, I. S. [2 ]
Morita, K. [2 ]
Yoshida, H. [2 ]
Hiraga, K. [2 ]
机构：
[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea
[2] Natl Inst Mat Sci, Tsukuba, Ibaraki, Japan
[3] Inha Univ, Dept Mat Sci & Engn, Inchon 402751, South Korea
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 03期
关键词：
LUMINESCENCE PROPERTIES; POWDER; EU2+;
D O I：
10.1063/1.4788929
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
White emission produced by Ti-doped MgAl2O4 phosphor powder is reported, which is in contrast to blue emission from most Ti-doped single crystals of MgAl2O4. The white emission peak consists of four deconvoluted peaks: 440, 490, 550, and 620 nm, when was excited by 260 nm wavelength. Ti4+ in octahedral sites was found to contribute mostly to greenish blue emissions at 490 and 550 nm. The red emission at 620 nm was produced by abundant Mg2+ and O2- vacancies in the spinel powder. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4788929]
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页数：4
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