Author, as appears in the article.: X. Mateos; P.A. Loiko; E.V. Vilejshikova ; N.M. Khaidukov; J. Méndez-Ramos ; K.V. Yumashev
Department: Química Física i Inorgànica
URV's Author/s: MATEOS FERRÉ, XAVIER; P.A. Loiko; E.V. Vilejshikova ; N.M. Khaidukov; J. Méndez-Ramos ; K.V. Yumashev
Keywords: Erbium Fluoride crystals Judd-Ofelt analysis
Abstract: Absorption and emission properties of Er3+ ions in a cubic elpasolite crystal, Cs2NaYF6, are modeled within the Judd-Ofelt (J-O) theory. The J-O intensity parameters have been determined: ¿2 = 0.665, ¿4 = 0.217 and ¿6 = 0.029 ×10¿20 cm2. The elpasolite structure of Cs2NaYF6 containing isolated [YF6] polyhedra allows high Er3+ doping levels up to 100 at% without considerable concentration quenching of luminescence and exceptionally long lifetimes of the excited states (in particular, the radiative lifetimes of the 4I13/2 and 4I11/2 states are as long as 36.7 ms and 113.4 ms, respectively). It also shows weak non-radiative relaxation. Stimulated-emission cross-sections have been determined for the Er3+ transitions in Cs2NaYF6 at ~2.7 and ~1.5 ¿m as well as in the visible spectral range.
Research group: Física i Cristal.lografia de Materials
Thematic Areas: Química Química Chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0022-2313
Author identifier: 0000-0003-1940-1990; 0000-0002-4270-0668; n/a; n/a; n/a; n/a
Record's date: 2017-02-23
Last page: 285
Journal volume: 185
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
First page: 279
Publication Type: Article Artículo Article
Repositori URV