Integrated broadband near-infrared luminescence in transparent glass ceramics containing γ-Ga2O3: Ni2+ and β-YF3: Er3+ nanocrystals

被引：29
作者：
Zhang, Rui [1 ]
Lin, Hang [1 ]
Chen, Daqin [1 ]
Yu, Yunlong [1 ]
Wang, Yuansheng [1 ]
机构：
[1] Chinese Acad Sci, Grad Univ, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 552卷
基金：
中国国家自然科学基金;
关键词：
Glass ceramics; Near-infrared luminescence; Nanocomposite; Ni2+; Er3+; SPECTROSCOPIC PROPERTIES; OPTICAL AMPLIFICATION; SILICATE GLASS; UP-CONVERSION; EMISSION; SYSTEM; STATES; IONS;
D O I：
10.1016/j.jallcom.2012.11.092
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ni2+/Er3+ dual-doped transparent glass ceramic containing gamma-Ga2O3 and beta-YF3 nanocrystals is prepared by melt quenching and subsequent heating. It is experimentally demonstrated that Ni2+ and Er3+ are partitioned into gamma-Ga2O3 and beta-YF3 nanocrystals, respectively, which greatly reduces the adverse energy transfer between them. Accordingly, an integrated broad near-infrared emission band in the wavelength region of 1020-1650 nm, consisting of Ni2+: T-3(2)(F) -> (3)A(2)(F) emission around 1220 nm and Er3+: 4I(13/2) -> I-4(15/2) emission around 1540 nm, is observed under 980 nm excitation. Compared to that in the Ni2+/Er3+ dual-doped glass ceramic containing gamma-Ga2O3 and LaF3 nanocrystals, the integrated near-infrared emission intensity in the present sample is increased by two times, ascribing to the higher Er3+ solubility in beta-YF3 crystallites. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：398 / 404
页数：7
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