Abstract
In present work, one-dimensional nanostructure of Cu-doped Tin oxide (SnO2) was synthesized by using thermal evaporation method in a tubular furnace under Nitrogen (N2) ambience. The growth was carried out at atmospheric pressure. SEM and TEM images reveal the growth of wire-like nanostructures of Cu-doped SnO2 on Si substrate. The XRD analysis confirms that the synthesized SnO2 nanowires have tetragonal rutile structure with polycrystalline nature and X-ray diffraction pattern also showed that Cu gets incorporated into the SnO2 lattice. EDX spectra confirm the doping of Cu into SnO2 nanowires and atomic fraction of Cu in nanowires is ∼ 0.5 at%. The Vapor Liquid Solid (VLS) growth mechanism for Cu-doped SnO2 nanowires was also confirmed by EDX spectra. The optical properties of as grown Cu-doped SnO2 nanowires were studied by using UV-vis spectra which concludes the band gap of about 3.7 eV. As synthesized single Cu-doped SnO2 nanowire based gas sensor exhibit relatively good performance to ethanol gas. This sensing behaviour offers a suitable application of the Cu-doped SnO2 nanowire sensor for detection of ethanol gas.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call