Characterization of individual SnO2 nanobelts with STM

K. Katsiev, A. Kolmakov, M. Fang, U. Diebold

Department of Physics, Tulane University, New Orleans, Louisiana 70118, U.S.A.
Department of Physics, Southern Illinois University at Carbondale, Carbondale, IL 62901, USA
Department of Physics, Zhejiang University, Hangzhou 310027, PR China

Surf. Sci. 602 (2008) L112-L114

The surface morphology of tin oxide nanobelts (NB) was studied with scanning tunneling microscopy (STM), dry-deposited on TiO2 substrates. XPS shows carbon contamination on as-grown, air-exposed SnO2 nanobelts, which was removed by oxygen plasma cleaning. The thermal stability of the NBs was studied with SEM and critical temperatures, where structural changes occur in UHV, O2 atmosphere, and air, were determined. Atomically resolved STM images show a SnO2(101)-(1 × 1) structure on the top NB surface.

Reprints available from U. Diebold (diebold at iap_tuwien_ac_at).

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