XPS study of organic/MoO3 hybrid thin films for aldehyde gas sensors: correlation between average Mo valence and sensitivity

  • ITOH Toshio
    National Institute of Advanced Industrial Science and Technology (AIST)
  • MATSUBARA Ichiro
    National Institute of Advanced Industrial Science and Technology (AIST)
  • SHIN Woosuck
    National Institute of Advanced Industrial Science and Technology (AIST)
  • IZU Noriya
    National Institute of Advanced Industrial Science and Technology (AIST)
  • NISHIBORI Maiko
    National Institute of Advanced Industrial Science and Technology (AIST)

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説明

We investigate the formaldehyde gas sensing properties of poly(5,6,7,8-tetrahydro-1-naphthylamine)-intercalated MoO3 thin films ((PTHNA)xMoO3). The resistance responses of (PTHNA)xMoO3 to formaldehyde increase with increasing intercalation temperature. X-ray photoelectron spectroscopy reveals that the molar ratio of Mo5+ decreases with increasing intercalation temperature.

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