The influence of high magnetic field on electric-dipole emission spectra of Eu3+ in different single crystals

被引：40
作者：
Du, Guihuan [1 ,2 ]
Liu, Peng [1 ,3 ]
Guo, Weiwei [1 ,3 ]
Han, Yibo [1 ,2 ]
Zhang, Junpei [1 ,3 ]
Ma, Zongwei [1 ,3 ]
Han, Junbo [1 ,2 ]
Liu, Zuli [3 ]
Yao, Kailun [1 ,3 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 45期
基金：
中国国家自然科学基金;
关键词：
PHOTOLUMINESCENCE; NANOPHOSPHORS; INTENSITIES;
D O I：
10.1039/c3tc31385a
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, the effect of pulsed high magnetic field on the integral intensity of the electric-dipole emission spectrum of Eu3+ in YVO4:Eu3+ and GdVO4:Eu3+ single crystals was studied and the results showed magnetic field induced luminescence suppression in YVO4:Eu3+ and luminescence expansion in GdVO4:Eu3+. The single crystals were prepared by the optical floating zone method. The strong effect of the magnetic field on the splitting and emission of D-5(0)-F-7(2) and D-5(0)-F-7(4) transitions in Eu3+ was investigated. The integral luminescence intensities of Eu3+ are proportional to the magnetic field at higher than 15 T. For GdVO4:Eu3+, the integral intensity increases with the strengthening of magnetic field, and is completely opposite to that for YVO4:Eu3+. In this study, the dependence of luminescence integral intensity on the magnetic field was proposed to be the result of the structural change induced by high magnetic field which changes the symmetry of Eu3+ ions in single crystals.
引用
收藏
页码：7608 / 7613
页数：6
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