Articles producció científica> Química Física i Inorgànica

Judd-Ofelt modeling, emission lifetimes and non-radiative relaxation for Er3+ doped Cs2NaYF6 elpasolite crystals

  • Dades identificatives

    Identificador: imarina:9298954
    Autors:
    Loiko, P. A.Vilejshikova, E. V.Khaidukov, N. M.Mendez-Ramos, J.Mateos, X.Yumashev, K. V.
    Resum:
    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: ohm(2) = 0.665, ohm(4) = 0.217 and ohm(6) = 0.029 x 10(-20) cm(2). 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 I-4(13/2) and I-4(11/2) 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 similar to 2.7 and similar to 1.5 m as well as in the visible spectral range. (C) 2017 Elsevier B.V. All rights reserved.
  • Altres:

    Autor segons l'article: Loiko, P. A.; Vilejshikova, E. V.; Khaidukov, N. M.; Mendez-Ramos, J.; Mateos, X.; Yumashev, K. V.;
    Departament: Química Física i Inorgànica
    Autor/s de la URV: Mateos Ferré, Xavier
    Paraules clau: Up-conversion Stimulated-emission Stimulated emission Refractive-index Rare-earth ions Mu-m Luminescence Laser crystals Judd-ofelt analysis Fluoride crystals Fluoride Erbium Electronic-spectra Cross-sections
    Resum: 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: ohm(2) = 0.665, ohm(4) = 0.217 and ohm(6) = 0.029 x 10(-20) cm(2). 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 I-4(13/2) and I-4(11/2) 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 similar to 2.7 and similar to 1.5 m as well as in the visible spectral range. (C) 2017 Elsevier B.V. All rights reserved.
    Àrees temàtiques: Química Optics Odontología Medicina ii Medicina i Materiais Interdisciplinar General chemistry Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Biotecnología Biophysics Biochemistry Atomic and molecular physics, and optics Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: xavier.mateos@urv.cat
    Identificador de l'autor: 0000-0003-1940-1990
    Data d'alta del registre: 2024-09-07
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0022231316318361
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Journal Of Luminescence. 185 279-285
    Referència de l'ítem segons les normes APA: Loiko, P. A.; Vilejshikova, E. V.; Khaidukov, N. M.; Mendez-Ramos, J.; Mateos, X.; Yumashev, K. V.; (2017). Judd-Ofelt modeling, emission lifetimes and non-radiative relaxation for Er3+ doped Cs2NaYF6 elpasolite crystals. Journal Of Luminescence, 185(), 279-285. DOI: 10.1016/j.jlumin.2017.01.036
    DOI de l'article: 10.1016/j.jlumin.2017.01.036
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2017
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Atomic and Molecular Physics, and Optics,Biochemistry,Biophysics,Chemistry (Miscellaneous),Condensed Matter Physics,Optics
    Up-conversion
    Stimulated-emission
    Stimulated emission
    Refractive-index
    Rare-earth ions
    Mu-m
    Luminescence
    Laser crystals
    Judd-ofelt analysis
    Fluoride crystals
    Fluoride
    Erbium
    Electronic-spectra
    Cross-sections
    Química
    Optics
    Odontología
    Medicina ii
    Medicina i
    Materiais
    Interdisciplinar
    General chemistry
    Farmacia
    Ensino
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Condensed matter physics
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciência de alimentos
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Biophysics
    Biochemistry
    Atomic and molecular physics, and optics
    Astronomia / física
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