Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    The technical potential of a new plasmonic sensor, which can acquire surface-enhanced Raman spectra with high sensitivity by controlling surface plasmons is demonstrated for the chemical analysis of diamond-like carbon (DLC) films, lubricant films, and the DLC/lubricant interface on magnetic disks of sub-nanometer scale. The Raman spectra of thin DLC films and lubricated DLC carbon can be acquired with a high S/N ratio. Raman spectra of lubricated DLC carbon can also be acquired with the high S/N ratio. The wavenumber shift and intensity change of the Raman peaks of the phenyl and hydroxyl groups in the mixed lubricants (ADOH and Z-tetraol) show that the chemical interaction with the DLC surfaces of the phenyl group in the lubricant molecule decreases with increasing nitrogen content, whereas that of the hydroxyl group with the nitrogenated carbon increases. Raman spectra of nitrogenated DLC films are also acquired, the peaks show good agreement with density functional theory calculations. The calculated bonding energy indicates that the hydroxyl groups interact with the nitrogenated carbon.

    Original languageEnglish
    Title of host publicationASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014
    PublisherWeb Portal ASME (American Society of Mechanical Engineers)
    ISBN (Print)9780791845790
    DOIs
    Publication statusPublished - 2014
    EventASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014 - Santa Clara
    Duration: 2014 Jun 232014 Jun 24

    Other

    OtherASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014
    CitySanta Clara
    Period14/6/2314/6/24

    Fingerprint

    Diamond like carbon films
    Lubricants
    Diamonds
    Carbon
    Sensors
    Chemical analysis
    Raman scattering
    Plasmons
    Density functional theory
    Nitrogen
    Molecules

    Keywords

    • DLC film
    • Lubricant
    • Magnetic disk
    • Plasmonic sensor
    • Surface-enhanced Raman scattering
    • Tribology

    ASJC Scopus subject areas

    • Information Systems
    • Control and Systems Engineering
    • Hardware and Architecture

    Cite this

    Yanagisawa, M., Kunimoto, M., & Homma, T. (2014). Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors. In ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014 Web Portal ASME (American Society of Mechanical Engineers). https://doi.org/10.1115/ISPS2014-6908

    Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors. / Yanagisawa, M.; Kunimoto, Masahiro; Homma, Takayuki.

    ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014. Web Portal ASME (American Society of Mechanical Engineers), 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Yanagisawa, M, Kunimoto, M & Homma, T 2014, Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors. in ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014. Web Portal ASME (American Society of Mechanical Engineers), ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014, Santa Clara, 14/6/23. https://doi.org/10.1115/ISPS2014-6908
    Yanagisawa M, Kunimoto M, Homma T. Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors. In ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014. Web Portal ASME (American Society of Mechanical Engineers). 2014 https://doi.org/10.1115/ISPS2014-6908
    Yanagisawa, M. ; Kunimoto, Masahiro ; Homma, Takayuki. / Chemical analysis of ultrathin DLC films and lubricant/DLC interface using plasmonic sensors. ASME 2014 Conference on Information Storage and Processing Systems, ISPS 2014. Web Portal ASME (American Society of Mechanical Engineers), 2014.
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