Articles producció científica> Química Física i Inorgànica

Luminescence nanothermometry via white light emission in Ho3+, Tm3+:Y2O3 colloidal nanocrystals

  • Identification data

    Identifier: imarina:9261333
    Authors:
    Nexha APujol MCCarvajal JJDíaz FAguiló M
    Abstract:
    Cubic Ho3+ and Tm3+ doped Y2O3 colloidal nanotriangles with lateral length sizes ∼43 nm, were synthesized via thermal decomposition methodology. These colloidal nanocrystals, upon high power excitation at 808 nm, generate white light. The crystalline structure, size and shape, and the surface of the colloidal nanocrystals, were investigated before and after being exposed to laser excitation. Factors that might affect the generation of white light, such as the power of excitation source, the stability of the emission with time, and the temperature at which the colloidal nanocrystals were exposed, are analyzed. The white light displayed temperature-dependence optical properties, allowing the application of these nanocrystals as luminescent nanothermometers over a wide range of temperatures, from room temperature to 473 K. The relative thermal sensitivity and the temperature resolution of these luminescent nanothermometers are 3.38% K−1 and 0.15 K, respectively, at 473 K, enabling to demonstrate a new highly sensitive mechanism for luminescence thermometry.
  • Others:

    Author, as appears in the article.: Nexha A; Pujol MC; Carvajal JJ; Díaz F; Aguiló M
    Department: Química Física i Inorgànica
    URV's Author/s: Aguiló Díaz, Magdalena / Carvajal Martí, Joan Josep / Díaz González, Francisco Manuel / Nexha, Albenc / Pujol Baiges, Maria Cinta
    Keywords: Yttrium oxide White light emission Up-conversion emission Luminescence nanothermometry Lanthanide doping Colloidal nanocrystals yttrium oxide white light emission semiconductor nanocrystals quantum dots phosphor oxide nanoparticles oleic-acid nano-powders luminescence nanothermometry lanthanide doping emitting-diodes broad-band bright
    Abstract: Cubic Ho3+ and Tm3+ doped Y2O3 colloidal nanotriangles with lateral length sizes ∼43 nm, were synthesized via thermal decomposition methodology. These colloidal nanocrystals, upon high power excitation at 808 nm, generate white light. The crystalline structure, size and shape, and the surface of the colloidal nanocrystals, were investigated before and after being exposed to laser excitation. Factors that might affect the generation of white light, such as the power of excitation source, the stability of the emission with time, and the temperature at which the colloidal nanocrystals were exposed, are analyzed. The white light displayed temperature-dependence optical properties, allowing the application of these nanocrystals as luminescent nanothermometers over a wide range of temperatures, from room temperature to 473 K. The relative thermal sensitivity and the temperature resolution of these luminescent nanothermometers are 3.38% K−1 and 0.15 K, respectively, at 473 K, enabling to demonstrate a new highly sensitive mechanism for luminescence thermometry.
    Thematic Areas: 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
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: joanjosep.carvajal@urv.cat magdalena.aguilo@urv.cat mariacinta.pujol@urv.cat f.diaz@urv.cat
    Author identifier: 0000-0002-4389-7298 0000-0001-6130-9579 0000-0002-1052-8031 0000-0003-4581-4967
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0022231322001296
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Journal Of Luminescence. 247
    APA: Nexha A; Pujol MC; Carvajal JJ; Díaz F; Aguiló M (2022). Luminescence nanothermometry via white light emission in Ho3+, Tm3+:Y2O3 colloidal nanocrystals. Journal Of Luminescence, 247(), -. DOI: 10.1016/j.jlumin.2022.118854
    Article's DOI: 10.1016/j.jlumin.2022.118854
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Atomic and Molecular Physics, and Optics,Biochemistry,Biophysics,Chemistry (Miscellaneous),Condensed Matter Physics,Optics
    Yttrium oxide
    White light emission
    Up-conversion emission
    Luminescence nanothermometry
    Lanthanide doping
    Colloidal nanocrystals
    yttrium oxide
    white light emission
    semiconductor nanocrystals
    quantum dots
    phosphor
    oxide nanoparticles
    oleic-acid
    nano-powders
    luminescence nanothermometry
    lanthanide doping
    emitting-diodes
    broad-band
    bright
    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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