Study on defects in ultrananocrystalline diamond/amorphous carbon composite films prepared by physical vapor deposition

Y. Katamune, S. Ai-Riyami, S. Takeichi, T. Yoshitake

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

    1 Citation (Scopus)

    Abstract

    Ultrananocrystalline diamond/amorphous carbon composite (UNCD/a-C:H) films was deposited by coaxial arc plasma deposition with a graphite target. UNCD/a-C:H films prepared byphysical vapor deposition show large optical absorption coefficients in the photon range from 3 to 5 eV due to disordered structures in a-C:H and grain boundaries. Electron spin resonance measurement indicates the existence of a large number of dangling bonds with a density of ∼1022 cm-3. These dangling bonds might cause the formation of localized states in diamond band gap and contribute to the optical absorption properties specific to the UNCD/a-C:H films.

    Original languageEnglish
    Title of host publicationCarbon Nanostructures
    Subtitle of host publicationFrom Fundamental Studies to Applications and Devices
    EditorsR. B. Weisman, P. B. Atanassov, H. Imahori, S. V. Rotkin
    PublisherElectrochemical Society Inc.
    Pages45-52
    Number of pages8
    Edition25
    ISBN (Electronic)9781607685395
    DOIs
    Publication statusPublished - Jan 1 2016
    EventSymposium on Carbon Nanostructures: From Fundamental Studies to Applications and Devices - PRiME 2016/230th ECS Meeting - Honolulu, United States
    Duration: Oct 2 2016Oct 7 2016

    Publication series

    NameECS Transactions
    Number25
    Volume75
    ISSN (Print)1938-6737
    ISSN (Electronic)1938-5862

    Other

    OtherSymposium on Carbon Nanostructures: From Fundamental Studies to Applications and Devices - PRiME 2016/230th ECS Meeting
    CountryUnited States
    CityHonolulu
    Period10/2/1610/7/16

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    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    Katamune, Y., Ai-Riyami, S., Takeichi, S., & Yoshitake, T. (2016). Study on defects in ultrananocrystalline diamond/amorphous carbon composite films prepared by physical vapor deposition. In R. B. Weisman, P. B. Atanassov, H. Imahori, & S. V. Rotkin (Eds.), Carbon Nanostructures: From Fundamental Studies to Applications and Devices (25 ed., pp. 45-52). (ECS Transactions; Vol. 75, No. 25). Electrochemical Society Inc.. https://doi.org/10.1149/07525.0045ecst