Abstract
One-dimensional wire shaped tin oxide (SnO2) nanostructures have been synthesized by thermal evaporation method. The growth of SnO2 nanostructure was carried out on gold catalyst layer coated silicon substrate. X-ray diffraction (XRD) results reveals that synthesized SnO2 nanowires have polycrystalline nature with tetragonal rutile structure. SEM, TEM and EDX observation concludes that the uniform SnO2 nanowires (diameter ~ 40 nm and length ~ 50 μm) grow with vapor-liquid-solid (VLS) mechanism. I-V characteristics of single SnO2 nanowire show semiconducting behaviour. Due to structural and electrical properties of SnO2 nanowire, these nanowires would be a promising candidate for gas sensing applications.
Highlights
Quasi-one-dimensional (1D) nanostructures have unique electronic, optical, and mechanical properties [1] due to their low dimensionality and the quantum confinement effect
We have studied the effect of different measurement temperature on the electrical properties of single SnO2 nanowire
The strong and sharp reflection peaks suggest that the high crystalline SnO2 nanowires were successfully obtained through the present synthesis method
Summary
Quasi-one-dimensional (1D) nanostructures have unique electronic, optical, and mechanical properties [1] due to their low dimensionality and the quantum confinement effect. Her area of research is Synthesis of Pure and Doped Metal Oxide Nanostructures for Gas Sensing Applications. Tin dioxide (SnO2) is an n-type semiconductor with a wide band gap (Eg = 3.62 eV, at 300 K) and is well known for its potential applications in gas sensors [3], dye-based solar cells [4], transparent conducting electrodes [5], optical devices [6] and electronic devices [7].
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