Paper Title:
Synthesis Improvement of Yb3+-Activated SnO2 Nanocrystals
  Abstract

Yb3+ doped SnO2 nanocrystals were synthesized, using the hydrolytic route in the presence of starch as the size stabilizer. Starting from salt precursors, the nanopowders obtained with various Yb3+ loads are thermally stable up to 600 °C. They were characterized by XRD, solid state NMR, TEM, ICP and TG-MS techniques. The nanocrystal Cassiterite structure, with a size of a few nanometers (<6 nm), was identified by XRD, NMR and Raman measurements confirming a homogeneous dispersion of Yb3+ ions in the lattice. The preliminary assessment of the spectroscopic features of nanocrystals was performed by absorption and photoluminescence spectroscopy. The typical Yb3+ absorption peak, centred at 977 nm, and an intense 2F5/2→ 2F7/2 Yb3+ emission band were observed.

  Info
Periodical
Solid State Phenomena (Volume 128)
Main Theme
Edited by
Witold Łojkowski and John R. Blizzard, Urszula Narkiewicz and Janusz D. Fidelus
Pages
31-40
DOI
10.4028/www.scientific.net/SSP.128.31
Citation
E. Callone, G. Carturan, Y. Jestin, M. Ferrari, "Synthesis Improvement of Yb3+-Activated SnO2 Nanocrystals ", Solid State Phenomena, Vol. 128, pp. 31-40, 2007
Online since
October 2007
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$32.00
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