Spectroscopic Study for UV Irradiation Effect on Adsorpt ion State of Volatile Aldehyde at Single Crystalline ZnO Nanowire Surface

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説明

Ultraviolet (UV) irradiation is a promising approach for enhancing a sensing response in metal oxide-based molecular sensor, however, its substantial impact on the molecular-to-surface interaction at sensor surface is poorly understood. In this study, we investigated the UV irradiation effect on adsorption state of volatile aldehyde at single crystalline zinc oxide (ZnO) nanowire surface by Fourier transform-infrared spectroscopy (FT-IR). A C9 aliphatic aldehyde, nonanal, was employed as an analyte. We found that oxidation of adsorbed nonanal was significantly promoted by the UV irradiation. A wavelength dependence implied that the photogenerated carriers play a crucial role in the enhanced oxidation. Our finding would be beneficial for designing the performances of metal oxide nanowire-based molecular sensing devices.

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詳細情報 詳細情報について

  • CRID
    1390573242447670016
  • NII論文ID
    120007193382
  • NII書誌ID
    AA1147319X
  • DOI
    10.15017/4763158
  • HANDLE
    2324/4763158
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • IRDB
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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