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Study of visible light emission under UV excitation in Y2O3:Er3+-Gd3+ and Y2O3:Eu3+-Gd3+ nanocrystals

  • Original Paper: Sol–gel and hybrid materials for optical, photonic and optoelectronic applications
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Abstract

In this work, we study the Y2O3:Er3+-Gd3+ and Y2O3:Eu3+-Gd3+ nanocrystals using statistical tools in order to quantify the effect of dopant concentration, crystallite size, induced strain, and lattice parameters on luminescent parameters such as intensity and color emission. Samples were synthesized using the sol–gel method. In the case of emission properties of Y2O3:Er3+-Gd3+, the most important factor is Erbium concentration, while the energy transfer between Gadolinium-Erbium is statistically insignificant, compared to the dynamics between Erbium–Erbium ions. On the other hand, the Y2O3:Eu3+-Gd3+ emission intensity depends on the dopant concentration: an increase of Gadolinium ions increases the emission intensity, and the quadratic effect of the Eu3+ ions reduce the emission intensity. However, the color coordinate is not so influenced by the dopant concentration; in the case of Y2O3:Er3+-Gd3+ samples, the color coordinate depends only on Er3+ concentration.

Stokes luminescence process of Gd3+, Eu3+, Er3+ ions, and charge‐transfer bands responsible for the visible emission.

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Authors and Affiliations

  1. Universidad de Guadalajara, Centro Universitario de los Valles, Carretera Guadalajara-Ameca, Km. 45.5, C.P. 46600, Ameca, Jalisco, Mexico

    S. Vargas Rodríguez & J. C. Mixteco-Sánchez

  2. Instituto de Física, Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, 78000, San Luis Potosí, Mexico

    E. G. Villabona-Leal & Elias Perez

  3. Universidad de Guadalajara, Centro Universitario de Tonalá, Av. Nuevo Periférico Oriente 555, Ejido San José Tatepozco, 45425, Tonalá, Jalisco, Mexico

    V. H. Romero

  4. Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Óptica, A. P. 1-948, Leon, GTO, Mexico

    H. Desirena

  5. Instituto de Física, Ing. Luis Rivera Terrazas, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla, 72570, Mexico

    U. Salazar-Kuri & O. Meza

Authors
  1. S. Vargas Rodríguez
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  2. E. G. Villabona-Leal
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  3. J. C. Mixteco-Sánchez
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  4. V. H. Romero
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  5. H. Desirena
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  6. Elias Perez
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  7. U. Salazar-Kuri
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  8. O. Meza
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Correspondence to O. Meza.

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The authors declare that they have no conflict of interest.

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Highlights

  1. 1.

    Colorimetric properties as a function of the crystal structure, and dopant the effects are estimated.

  2. 2.

    It is possible to control the color coordinate by varying only the Er3+ concentration.

  3. 3.

    Gd3+ increases the luminescence intensity when it is combined with Eu3+ ions; however, with Er3+ ions, the combination has no effect.

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Rodríguez, S.V., Villabona-Leal, E.G., Mixteco-Sánchez, J.C. et al. Study of visible light emission under UV excitation in Y2O3:Er3+-Gd3+ and Y2O3:Eu3+-Gd3+ nanocrystals. J Sol-Gel Sci Technol 86, 782–794 (2018). https://doi.org/10.1007/s10971-018-4661-7

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  • DOI: https://doi.org/10.1007/s10971-018-4661-7

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