ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Yb3+ doped SnO2 nanocrystals were synthesized, using the hydrolytic route in thepresence of starch as the size stabilizer. Starting from salt precursors, the nanopowders obtainedwith various Yb3+ loads are thermally stable up to 600 °C. They were characterized by XRD, solidstate NMR, TEM, ICP and TG-MS techniques. The nanocrystal Cassiterite structure, with a size ofa few nanometers (〈6 nm), was identified by XRD, NMR and Raman measurements confirming ahomogeneous dispersion of Yb3+ ions in the lattice. The preliminary assessment of thespectroscopic features of nanocrystals was performed by absorption and photoluminescencespectroscopy. The typical Yb3+ absorption peak, centred at 977 nm, and an intense 2F5/2→ 2F7/2Yb3+ emission band were observed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.128.31.pdf
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