Chiang Mai Journal of Science

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ZnO nanobelts were synthesized by radio frequency (RF) sputtering on copper, silicon and alumina substrates. The sputtering time was 60 min, in argon atmospheric pressure of  40 mtorr. The ZnO nanobelts were characterized by Field Emission Scanning Electron Microscopy, Energy  Dispersive  Spectroscopy,  and Transmission  Electron  Microscopy for  morphology, composition and crystal structure, respectively. From these results, ZnO nanobelts on copper substrate exhibit single crystalline hexagonal structure with size ranging from 10-150 nm, and the length of  several micrometers. The morphology of  ZnO nanobelt is also influenced by the types of the substrate. These ZnO nanostructures could be further explored for the use as nano gas sensor.

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