5d-4f emission of Eu2+ and electron-vibrational interaction in several alkaline earth sulfides doped with Eu2+ and Er3+

被引：11

作者：

Kumar, G. A. ^{[1
,2
]}

Liu, D. -X. ^{[3
]}

Tian, Y. ^{[3
]}

Brik, M. G. ^{[3
,4
,5
,6
]}

Sardar, D. K. ^{[1
]}

机构：

[1] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA

[2] Manipal Univ, Dept Atom & Mol Phys, Manipal 576104, Karnataka, India

[3] Chongqing Univ Posts & Telecommun, Coll Sci, Chongqing 400065, Peoples R China

[4] Univ Tartu, Inst Phys, EE-50411 Tartu, Estonia

[5] Jan Dlugosz Univ, Inst Phys, PL-42200 Czestochowa, Poland

[6] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

OPTICAL MATERIALS | 2015年 / 50卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Photostimulated luminescence; Upconversion; Optical material; Electron-phonon interaction; Huang-Rhys factor; PHOTOSTIMULATED LUMINESCENCE; SRS-EU; PHOSPHOR;

D O I：

10.1016/j.optmat.2015.10.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Several alkaline earth sulfides doped with Eu2+ and Er3+ ions have been synthesized and shown to be potential phosphors for applications in the visible spectral range. The excitation and emission spectra corresponding to the 4f-5d interconfigurational transitions of Eu2+ were analyzed with an aim of extraction of the main parameters of the electron-vibrational interaction. The values of the Huang-Rhys factor, effective phonon energies, and zero-phonon line positions were systematically compared for all studied materials; physical trends were discussed. As a test for the validity of the obtained parameters, the Eu2+ 5d-4f emission bands were modeled to yield good agreement with the experimental spectra. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：199 / 203

页数：5

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