• DocumentCode
    963353
  • Title

    Wireless Love-wave chemical sensor on 41° YX LiNbO3

  • Author

    Wang, W. ; Kim, T. ; Lee, K. ; Yang, S.

  • Author_Institution
    Ajou Univ., Suwon
  • Volume
    43
  • Issue
    22
  • fYear
    2007
  • Abstract
    The design and performance of a novel wireless Love-wave CO2 sensor using a poly(methylmethacrylate) guiding layer on 41deg YX LiNbO3 piezoelectric substrate are described. Teflon AF2400 sensitive film provides large CO2 solubility, permeability and selectivity. A theoretical model is performed to describe wave propagation in Love-wave devices with large piezoelectricity substrate and to allow designing an optimised structure. A coupling of modes model is used to determine optimal design parameters. The gas response properties of the fabricated sensor as the linearity and sensitivity are studied and also a comparison to surface acoustic wave results, are discussed.
  • Keywords
    chemical sensors; lithium compounds; niobium compounds; piezoelectricity; wave propagation; CO2; LiNbO3; Teflon AF2400 sensitive film; gas response properties; optimal design parameters; piezoelectric substrate; polymethylmethacrylate guiding layer; wave propagation; wireless Love-wave chemical sensor;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20072067
  • Filename
    4375476
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=963353