N-type conduction in ultrananocrystalline diamond/hydrogenated amorphous carbon composite films prepared by coaxial arc plasma deposition using Li3PO4-blended graphite targets

Hiroki Gima, Itsuro Suzuki, Tsuyoshi Yoshitake

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

    Abstract

    Co-doping of lithium and phosphorus, which produce shallow donor levels in diamond, was examined for ultrananocrystalline diamond/hydrogenated amorphous carbon composite films prepared by coaxial arc plasma deposition. Semiconducting behaviors were electrically observed and the production of n-type conduction by doping was confirmed thermally. The electrical conductivity is on the order of 10-6 S/cm at room temperature, which suggests that the doping efficiency is extremely small. Totally considering the results of near-edge X-ray absorption fine structure and X-ray photoelectron spectra, Li2CO3 is supposed to be formed in the doped films, which might be a reason for the low doping efficiency.

    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.
    Pages37-44
    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

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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  • Cite this

    Gima, H., Suzuki, I., & Yoshitake, T. (2016). N-type conduction in ultrananocrystalline diamond/hydrogenated amorphous carbon composite films prepared by coaxial arc plasma deposition using Li3PO4-blended graphite targets. 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. 37-44). (ECS Transactions; Vol. 75, No. 25). Electrochemical Society Inc.. https://doi.org/10.1149/07525.0037ecst