Articles producció científica> Química Física i Inorgànica

Emission properties of hydrothermal Yb3+, Er3+and Yb3+, Tm3+-codoped Lu2O3nanorods: Upconversion, cathodoluminescence and assessment of waveguide behavior

  • Datos identificativos

    Identificador: imarina:5608738
    Handle: http://hdl.handle.net/20.500.11797/imarina5608738
  • Autores:

    Barrera E
    Pujol M
    Díaz F
    Choi S
    Rotermund F
    Park K
    Jeong M
    Cascales C
  • Otros:

    Autor según el artículo: Barrera E; Pujol M; Díaz F; Choi S; Rotermund F; Park K; Jeong M; Cascales C
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: , / Pujol Baiges, Maria Cinta
    Palabras clave: Hashtag Etiqueta «#» @uroweb @residentesaeu @infoAeu
    Resumen: Yb3+and Ln3+(Ln3+= Er3+or Tm3+) codoped Lu2O3nanorods with cubic Ia 3̄ symmetry have been prepared by low temperature hydrothermal procedures, and their luminescence properties and waveguide behavior analyzed by means of scanning near-field optical microscopy (SNOM). Room temperature upconversion (UC) under excitation at 980 nm and cathodoluminescence (CL) spectra were studied as a function of the Yb+concentration in the prepared nanorods. UC spectra revealed the strong development of Er3+4F9/2→4I15/2(red) and Tm3+1G4→3H6(blue) bands, which became the pre-eminent and even unique emissions for corresponding nanorods with the higher Yb3+concentration. Favored by the presence of large phonons in current nanorods, UC mechanisms that privilege the population of4F9/2and1G4emitting levels through phonon-assisted energy transfer and non-radiative relaxations account for these observed UC luminescence features. CL spectra show much more moderate development of the intensity ratio between the Er3+4F9/2→4I15/2(red) and2H11/2,4S3/2→4I15/2(green) emissions with the increase in the Yb3+content, while for Yb3+, Tm3+-codoped Lu2O3nanorods the dominant CL emission is Tm3+1D2→3F4(deep-blue). Uniform light emission along Yb3+, Er3+-codoped Lu2O3rods has been observed by using SNOM photoluminescence images; however, the rods seem to be too thin for propagation of light. © 2011 IOP Publishing Ltd.
    Áreas temáticas: Química Physics, applied Odontología Nanoscience and nanotechnology Nanoscience & nanotechnology Medicina veterinaria Medicina ii Medicina i Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materials science Materiais Matemática / probabilidade e estatística Interdisciplinar General medicine General materials science General chemistry Farmacia Ensino Engineering, multidisciplinary Engineering Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrical and electronic engineering Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Chemistry (miscellaneous) Chemistry (all) Biotecnología Bioengineering Astronomia / física Antropologia / arqueologia
    ISSN: 09574484
    Direcció de correo del autor: f.diaz@urv.cat mariacinta.pujol@urv.cat
    Identificador del autor: 0000-0003-4581-4967 0000-0002-1052-8031
    Fecha de alta del registro: 2023-10-14
    URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Nanotechnology. 22 (7): 075205-
    Referencia de l'ítem segons les normes APA: Barrera E; Pujol M; Díaz F; Choi S; Rotermund F; Park K; Jeong M; Cascales C (2011). Emission properties of hydrothermal Yb3+, Er3+and Yb3+, Tm3+-codoped Lu2O3nanorods: Upconversion, cathodoluminescence and assessment of waveguide behavior. Nanotechnology, 22(7), 075205-. DOI: 10.1088/0957-4484/22/7/075205
    DOI del artículo: 10.1088/0957-4484/22/7/075205
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2011
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Bioengineering,Chemistry (Miscellaneous),Electrical and Electronic Engineering,Engineering,Engineering, Multidisciplinary,Materials Science,Materials Science (Miscellaneous),Materials Science, Multidisciplinary,Mechanical Engineering,Mechanics of Materials,Nanoscience & Nanotechnology,Nanoscience and Nanotechnology,Physics, Applied
    Química
    Physics, applied
    Odontología
    Nanoscience and nanotechnology
    Nanoscience & nanotechnology
    Medicina veterinaria
    Medicina ii
    Medicina i
    Mechanics of materials
    Mechanical engineering
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    Materials science
    Materiais
    Matemática / probabilidade e estatística
    Interdisciplinar
    General medicine
    General materials science
    General chemistry
    Farmacia
    Ensino
    Engineering, multidisciplinary
    Engineering
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Electrical and electronic engineering
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Bioengineering
    Astronomia / física
    Antropologia / arqueologia
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