Photo-acoustic properties of nanoTiO2:Er

  • Authors

    • R. Palomino-Merino Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico http://orcid.org/0000-0002-2983-5293
    • R. Lozada-Morales
    • J. Martínez-Juárez
    • G. Juárez-Díaz
    • J. Carmona-Rodriguez
    • P. Del Angel
    • S. Jiménez-Sandoval
    • S. A. Tomas
    • O. Zelaya-Angel
    • V. M. Castaño
    2016-10-10
    https://doi.org/10.14419/ijbas.v5i4.5739
  • Titanium Dioxide, Crystal Morphology, Doping, Nanomaterials, Dielectric Materials Semicolon.
  • Nanocrystalline Er-doped TiO2 was prepared by sol-gel at room temperature. X-ray diffraction, photoacoustic spectroscopy (optical absorption), transmission electron microscopy (TEM), and electron dispersion microscopy (EDS) were carried out on both as-prepared and thermally-annealed (air at 700 ºC) samples, revealing the anatase crystalline phase of TiO2. The samples exhibit an average grain size from 38 to 5.1 nm, as the nominal concentration of Er varies from 0 % to 7 %. The photoacoustic spectra evidence the absorption edge at 300 nm attributed to TiO2, as well as several electronic transitions which are atomic energy absorption-line levels characteristics of Er.

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  • How to Cite

    Palomino-Merino, R., Lozada-Morales, R., Martínez-Juárez, J., Juárez-Díaz, G., Carmona-Rodriguez, J., Del Angel, P., Jiménez-Sandoval, S., Tomas, S. A., Zelaya-Angel, O., & Castaño, V. M. (2016). Photo-acoustic properties of nanoTiO2:Er. International Journal of Basic and Applied Sciences, 5(4), 196-199. https://doi.org/10.14419/ijbas.v5i4.5739