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Reports from National Taiwan University of Science and Technology Highlight Recent Findings in Zinc Oxide Nanotechnology

February 7, 2014

By a News Reporter-Staff News Editor at Science Letter -- Research findings on Nanotechnology are discussed in a new report. According to news reporting from Taipei, Taiwan, by NewsRx journalists, research stated, "A hybrid structure of graphene sheets (GSs)/ZnO nanorods (ZNRs) is developed on glass substrates for applications in field emission (FE) cathodes. ZNRs are grown on glass substrates by a combination of sputtering and hydrothermal processes."

The news correspondents obtained a quote from the research from the National Taiwan University of Science and Technology, "Graphene films are synthesized on the Cu foils by the thermal chemical vapor deposition technique, and are transferred onto the ZNRs with various cycles (one, two, and three times) to form GS/ZNR hybrids with different morphology. FESEM, XRD, and Raman spectroscopy are used to analyze the surface morphology, crystallinity, and chemical composition, respectively. It is found that the FE properties of all GS/ZNR cathodes possess a lower turn-on electric field and higher current density than pristine ZNR cathode owing to the presence of the GS. The GSs/ZNRs with two transferred cycle exhibit the lowest turn-on electric field (3.7 V/mu m, 1 mu A/cm(2)) and highest enhancement factor)beta (8723)."

According to the news reporters, the research concluded: "These superior properties indicate that the GS/ZNR hybrids are promising field cathodes in FE applications."

For more information on this research see: Hybrid structure of graphene sheets/ZnO nanorods for enhancing electron field emission properties. Applied Surface Science, 2014;289():384-387. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Applied Surface Science -

Our news journalists report that additional information may be obtained by contacting J.C. Lin, Natl Taiwan Univ Sci & Technol, Dept. of Elect Engn, Taipei 106, Taiwan. Additional authors for this research include B.R. Huang and T.C. Lin (see also Nanotechnology).

Keywords for this news article include: Asia, Taipei, Taiwan, Nanorod, Zinc Oxide, Nanotechnology, Emerging Technologies

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Source: Science Letter

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