Pt-coated InN nanorods for selective detection of hydrogen at room temperature

  • O. Kryliouk
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • H. J. Park
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • H. T. Wang
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • B. S. Kang
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • T. J. Anderson
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • F. Ren
    University of Florida Department of Chemical Engineering, , Gainesville, Florida 32611
  • S. J. Pearton
    University of Florida Department of Materials Science and Engineering, , Gainesville, Florida 32611

書誌事項

公開日
2005-08-15
DOI
  • 10.1116/1.2008268
公開者
American Vacuum Society

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説明

<jats:p>Single crystal InN nanorods were successfully grown on c-Al2O3 by hydride-metalorganic vapor phase epitaxy. The measured resistance of bare InN nanorods does not change upon exposure to hydrogen ambient. The addition of sputter-deposited clusters of Pt onto the surface of the InN nanorods, however, produced a significant change in the measured room temperature resistance. The measured resistance changed systematically by 0.5%–12% as the ambient hydrogen concentration in N2 was varied between 10 and 250 ppm after 15 min exposure time. Importantly, a relatively low power consumption of ∼0.3mW was measured under these conditions. There was no response at room temperature to O2, N2O, or NH3 exposures.</jats:p>

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