Up-conversion emission in KGd(WO4)2 single crystals triply-doped with Er3+/Yb3+/Tm3+, Tb3+/Yb3+/Tm3+ and Pr3+/Yb3+/Tm3+ ions

被引：21
作者：
Kasprowicz, D. [1 ]
Brik, M. G. [2 ]
Majchrowski, A. [3 ]
Michalski, E. [3 ]
Gluchowski, P. [4 ]
机构：
[1] Poznan Univ Tech, Fac Tech Phys, PL-60965 Poznan, Poland
[2] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[3] Mil Univ Technol, Inst Appl Phys, PL-00908 Warsaw, Poland
[4] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland
来源：
OPTICAL MATERIALS | 2011年 / 33卷 / 11期
关键词：
Double tungstates; KGd(WO4)(2); Rare earth ions; Up-conversion; WHITE-LIGHT EMISSION; OPTICAL-PROPERTIES; GERMANATE GLASSES; TRANSITION-METAL; TELLURITE GLASS; YB3+; LUMINESCENCE; TM3+; PR3+; ER3+;
D O I：
10.1016/j.optmat.2011.04.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Triply-doped single crystals KGd(WO4)(2):E-r3+/Yb3+/Tm3+, KGd(WO4)(2):Tb3+/Yb3+/Tm3+ and KGd(WO4)(2): Pr3+/Yb3+/Tm3+ were grown by the Top Seeded Solution Growth (TSSG) method, with an aim of getting efficient up-converted multicolored luminescence, which subsequently can be used for generation of white light. Such an aim determined the choice of the triply doped compounds: excitation of the Yb3+ ions in the infrared spectral region is followed by red, green and blue emission from other dopants. It was shown that all these systems exhibit multicolor up-conversion fluorescence under 980 nm laser irradiation. Detailed spectroscopic studies of their absorption and luminescence spectra were performed. From the analysis of the dependence of the intensity of fluorescence on the excitation power the conclusion was made about significant role played by the host's conduction band and other possible defects of the KGd(WO4)(2) crystal lattice in the up-conversion processes. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：1595 / 1601
页数：7
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