Crystal structure characterization and up-conversion luminescent properties of BaIn2O4 phosphor

被引：4
作者：
Chen, Shusen [1 ]
Wang, Wenjiang [1 ]
Wang, Keli [1 ]
Guan, Ming [1 ]
Molokeev, Maxim S. [2 ,3 ]
Mei, Lefu [1 ]
Huang, Zhaohui [1 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Natl Lab Mineral Mat, Beijing 100083, Peoples R China
[2] SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
[3] Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia
来源：
JOURNAL OF LUMINESCENCE | 2017年 / 192卷
关键词：
Crystal structure; Up-conversion; BaIn2O4; GREEN; DIFFRACTION; MECHANISMS; EMISSION;
D O I：
10.1016/j.jlumin.2017.06.034
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Er3+ / Yb3+ doped BaIn2O4 up-conversion (UC) phosphors are synthesized and their UC luminescent properties are characterized. BaIn2O4 has P21/c space group but Rietveld refinement suggests it has twice smaller cell parameter (a = 10.3975 A, b = 5.8295 A, c = 14.4457 A) and volume than previous reported structure. Refinement also reveals Er3+/Yb3+ replaces In3+ ions in lattice because of the existence of InO6 octahedra. In these BaIn2O4 phosphors, co-doping with Yb3+ ions changes the predominant UC emission from green (H-2(11/2), S-4(3/2) -> I-4(15/2) of Er3+) to red (about 665 nm, F-4(9/2) -> I-4(15/2) of Er3+). By controlling of Er3+/Yb3+ concentrations, the BaIn2O4 phosphors have the potential of generating various UC spectra and color tunability. The pumping powers study shows two-photon process in these phosphors.
引用
收藏
页码：218 / 223
页数：6
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