Articles producció científica> Química Física i Inorgànica

Anisotropic enhancement of Yb3+ luminescence by disordered plasmonic networks self-assembled on RbTiOPO4 ferroelectric crystals.

  • Dades identificatives

    Identificador: PC:3252
    Autors:
    Solé, R.Sánchez-García, L.Ramírez, M. O.Tserkezis, C.Carvajal, J. J.Aguió, M.Díaz, F.Bausá, L. E.
    Resum:
    Increasing Yb3+ absorption efficiency is currently desired in a number of applications including bioimaging, photovoltaics, near infrared driven photocatalysis or ultra-short pulsed solid-state lasers. In this work, silver nanoparticles, which are connected forming disordered networks, have been self-assembled on Yb3+ doped RbTiOPO4 crystals to produce a remarkable enhancement of Yb3+ absorption, and hence in the photoluminescence of this ion. The results are interpreted taking into account the near-field response of the plasmonic networks, which display strong amplification of the electric field at the maximum of Yb3+ excitation at around 900 nm, together with the anisotropic character of the Yb3+ transitions in RbTiOPO4. We show that in the near field regime, the scattering of the plasmonic networks produces additional polarization field components to those of the incident field, which allows access to the largest transition dipolar moment of Yb3+ ions in RbTiOPO4. As a result, a much more efficient route for Yb3+ excitation takes place at the immediacy of the plasmonic networks. This work provides fundamental insights for improving the optical properties of rare earth ions by the suitable design of metallic nanoparticle arrangements, and constitutes a promising step towards the development of new multifunctional solid-state lasers.
  • Altres:

    Autor segons l'article: Solé, R. ; Sánchez-García, L.; Ramírez, M. O. ; Tserkezis, C. ; Carvajal, J. J. ; Aguió, M.; Díaz, F. ; Bausá, L. E.
    Departament: Química Física i Inorgànica
    Autor/s de la URV: SOLÉ CARTAÑÀ, ROSA MARIA; Sánchez-García, L.; Ramírez, M. O. ; Tserkezis, C. ; CARVAJAL MARTÍ, JOAN JOSEP; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL; Bausá, L. E.
    Paraules clau: luminescence
    Resum: Increasing Yb3+ absorption efficiency is currently desired in a number of applications including bioimaging, photovoltaics, near infrared driven photocatalysis or ultra-short pulsed solid-state lasers. In this work, silver nanoparticles, which are connected forming disordered networks, have been self-assembled on Yb3+ doped RbTiOPO4 crystals to produce a remarkable enhancement of Yb3+ absorption, and hence in the photoluminescence of this ion. The results are interpreted taking into account the near-field response of the plasmonic networks, which display strong amplification of the electric field at the maximum of Yb3+ excitation at around 900 nm, together with the anisotropic character of the Yb3+ transitions in RbTiOPO4. We show that in the near field regime, the scattering of the plasmonic networks produces additional polarization field components to those of the incident field, which allows access to the largest transition dipolar moment of Yb3+ ions in RbTiOPO4. As a result, a much more efficient route for Yb3+ excitation takes place at the immediacy of the plasmonic networks. This work provides fundamental insights for improving the optical properties of rare earth ions by the suitable design of metallic nanoparticle arrangements, and constitutes a promising step towards the development of new multifunctional solid-state lasers.
    Grup de recerca: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials
    Àrees temàtiques: Química Química Chemistry
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2040-3364
    Identificador de l'autor: 0000-0002-5769-4141; ; ; ; 0000-0002-4389-7298; 0000-0001-6130-9579; 0000-0003-4581-4967;
    Data d'alta del registre: 2018-05-30
    Pàgina final: 16174
    Volum de revista: 9
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://pubs.rsc.org/en/content/articlelanding/2017/nr/c7nr03489j#!divAbstract
    Programa de finançament: plan; Retos; MAT-2016-76106-R plan; Retos; MAT2013-43301-R plan; Retos; MAT2016-75716-C2-1-R plan; Retos; TEC2014-55948-R altres; Comunidad de Madrid; S2013/MIT-2740 altres; Grupos Consolidados; SGR2014SGR1358. plan; FPU13/02476 european; Marie Curie COFUNDPostdocDTU; 609405
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1039/c7nr03489j
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2017
    Pàgina inicial: 16166
    Tipus de publicació: Article Artículo Article
  • Paraules clau:

    Luminescència
    luminescence
    Química
    Química
    Chemistry
    2040-3364
  • Documents:

  • Cerca a google

    Search to google scholar