Growth of SnO2 nanowires with uniform branched structures

Abstract SnO 2 nanowires have been prepared using the active carbon reaction with the fine SnO 2 powder at low temperature (700 °C). These nanowires show rectangular cross-section, with their widths ranging from 10 to 50 nm. Branched nanowires with definite included angle are also observed in these products. The morphology and microstructure of the single crystalline SnO 2 nanowires and the branched nanowires are characterized by means of scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), selective area electron diffraction (SAED) and Raman spectrum. In addition, the possible growth mechanism of the SnO 2 nanowires and branched nanowires is also discussed.

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