Near infrared and charge transfer luminescence of trivalent ytterbium in KLa(PO3)4 powders

被引：15

作者：

Ferhi, M. ^{[1
]}

Horchani-Naifer, K. ^{[1
]}

Hraiech, S. ^{[1
]}

Ferid, M. ^{[1
]}

Guyot, Y. ^{[2
]}

Boulon, G. ^{[2
]}

机构：

[1] Ctr Natl Rech Sci Mat, Lab Physicochim Mat Mineraux & Leurs Applicat, Tunis 2050, Tunisia

[2] Univ Lyon 1, CNRS, UMR 5620, LPCML, F-69622 Villeurbanne, France

来源：

OPTICS COMMUNICATIONS | 2012年 / 285卷 / 12期

关键词：

Charge transfer luminescence; Near infrared emission; Polyphosphate; Ytterbium; PHONON COUPLING STRENGTH; LANTHANIDE-ION SERIES; DOUBLE PHOSPHATES; SPECTROSCOPIC PROPERTIES; LASER APPLICATIONS; SINGLE-CRYSTALS; YB3+ IONS; GLASS; EMISSION; ALUMINUM;

D O I：

10.1016/j.optcom.2012.02.068

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The polycrystalline powders of condensed polyphosphates KLa(1-x)Ybx(PO3)(4) (x = 5, 10, 15,20%) with linear chain were prepared by solid-state reaction. These samples were characterized by X-ray diffraction, ETIR and Raman scattering spectroscopies. The obtained powders are formed by single monoclinic phase of type III of condensed polyphosphate KLa(PO3)(4) (KLP) crystallized with P2(1) space group. Lattice parameters varied as a function of the ytterbium concentration. As the Yb3+ concentration increased, the crystal lattice parameters were decreased. For the first time, near infrared (NIR) and UV-Visible spectroscopy of Yb3+ in KLa(PO3)4 powders, at room temperature, are carried out. In the IR range, a broad band relative to the fundamental F-2(5/2)-> F-2(7/2) emission was registered. In the UV-Visible spectra, two bands typical of the Yb3+ charge transfer band (CTB) luminescence are observed. The registered decay times of these two emission types showed low sensibility to the Yb3+ concentration in KLa(PO3)(4). (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2874 / 2878

页数：5

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