• DocumentCode
    2309565
  • Title

    Blue and red upconverted emission from fluoride crystal nanoparticles

  • Author

    Toncelli, Alessandra ; Ahmadi, Banafshe

  • Author_Institution
    Dipt. di Fis., Univ. di Pisa, Pontecorvo, Italy
  • fYear
    2011
  • fDate
    8-10 June 2011
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    Yb,Tm:BaY2F8 nanocrystals have been prepared and a complete spectroscopic characterization is given. After infrared pumping at 970nm we observed strong upconverted emission in the blue and red spectral regions together with infrared emissions. The lifetimes of the observed levels are in agreement with similar results in bulk crystal and no evidence of additional loss processes in the nanocrystals with respect to the bulk material is found.
  • Keywords
    barium compounds; biomedical materials; nanobiotechnology; nanoparticles; photoluminescence; radiative lifetimes; spectrochemical analysis; thulium; ytterbium; yttrium compounds; BaY2F8:Yb,Tm; blue upconverted emission; fluoride crystal nanoparticles; infrared emission; infrared pumping; nanocrystals; red upconverted emission; spectroscopic characterization; wavelength 970 nm; Biomedical optical imaging; Crystals; X-ray scattering;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    BioPhotonics, 2011 International Workshop on
  • Conference_Location
    Parma
  • Print_ISBN
    978-1-4244-9836-9
  • Electronic_ISBN
    978-1-4244-9835-2
  • Type

    conf

  • DOI
    10.1109/IWBP.2011.5954826
  • Filename
    5954826
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2309565