Characterization Of Individual Sno_2 Nanobelts With Stm

摘要

The surface morphology of tin oxide nanobelts (NB) was studied with scanning tunneling microscopy (STM), dry-deposited on TiO_2 substrates. XPS shows carbon contamination on as-grown, air-exposed SnO_2 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, O_2 atmosphere, and air, were determined. Atomically resolved STM images show a SnO_2(101)-(1 × 1) structure on the top NB surface.