Abstract
We report the characteristics of individual ultra-long SnO2 nanowires (NWs) grown on sapphire (0001) substrates using a vapor transport method. NWs, with typical lengths of >400 µm, grew in NW bundles under a H2 reducing atmosphere, without metal catalysts. Individual NWs were examined using high-resolution X-ray diffraction, transmission electron microscopy, and micro-Raman spectroscopy. The results revealed that the SnO2 NWs grew as high-quality, tetragonal-rutile-phase single crystals with mosaic distributions of 0.02° and 0.026° in the (101) and (110) planes, respectively.
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