FIB-tomographic studies on chemical vapor deposition grown SnO2 nanowire arrays on TiO2 (001)
MATERIALS RESEARCH EXPRESS(2016)
摘要
Tin oxide nanowire arrays on titania (001) have been successfully fabricated by chemical vapor deposition of Sn((OBu)-Bu-l) (4) precursor. The morphologies and structures of ordered SnO2 nanowires (NWs) were analyzed by cross-sectional SEM, HR-TEM and AFM. An FIB-tomography technique was applied in order to reconstruct a 3D presentation of ordered SnO2 nanowires. The achieved 3D analysis showed the spatial orientation and angles of ordered SnO2 NWs can be obtained in a one-shot experiment, and the distribution of Au catalysts showed the competition between 1D and 2D growth. The SnO2 nanowire arrays can be potentially used as a diameter- and surface-dependent sensing unit for the detection of gas- and bio-molecules.
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关键词
ordered tin oxide nanowires,focused ion beam,tomography
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