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Synthesis and Microscopic Characterization of In2O3/SnO2 Hetero-Junction Beaded Nanowires

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Hetero-junction beaded nanowires were synthesized from the mixture of Sn and In metals by the gas-transport technique. The growth characteristics at multiple growth conditions were analyzed using scanning electron microscopy, transmission electron microscopy, X-ray diffraction to evaluate the functional dependence of nanowire structure and composition on growth parameters. The results indicate that nanowires of mixed composition are possible from the mixture of indium and tin oxide wires are formed in the range of conditions investigated here. Many single-crystal In2O3 beads epitaxially grown along the axis of the single-crystal core SnO2 nanowires form the beaded nanowires. The In2O3 beads have definite orientations along the [2 0 0] direction of the core SnO2 nanowires and show regular rhombohedral morphology. A possible growth mechanism for the beaded nanowires is proposed.


Document Type: Research Article


Publication date: April 1, 2010

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  • Journal of Advanced Microscopy Research (JAMR) provides a forum for rapid dissemination of important developments in high-resolution microscopy techniques to image, characterize and analyze man-made and natural samples; to study physicochemical phenomena such as abrasion, adhesion, corrosion and friction; to perform micro and nanofabrication, lithography, patterning, micro and nanomanipulation; theory and modeling, as well as their applications in all areas of science, engineering, and medicine.
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