Electron affinity and surface re-ordering of homoepitaxial diamond (100)

Ka Wai Wong, Shuit Tong Lee, Raymund Wai Man Kwok, Yat Wah Lam, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The change in electron affinity and the re-ordering of the diamond surface upon annealing of a homoepitaxially grown diamond (100) thin film were investigated by ultraviolet photoemission spectroscopy low energy electron diffraction (LEED), and Auger electron spectroscopy. When the sample was heated to ∼ 1250°C, the electron affinity of the sample changed from negative to positive and the LEED pattern changed from (2 × 1/1 × 2) to (1 × 1) When the sample was further annealed at ∼ 900°C, the electron affinity and the LEED pattern reverted to negative and (2 × 1/1 × 2) respectively. The sample was then heated to ∼ 1100°C, followed by annealed at ∼ 900°C again, and the same phenomenon was observed. These observations were considered to be associated with the disordering/re-ordering behavior of the diamond surface upon annealing.

    Original languageEnglish
    Pages (from-to)5444-5447
    Number of pages4
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume35
    Issue number10
    Publication statusPublished - 1996

    Fingerprint

    Electron affinity
    Low energy electron diffraction
    electron affinity
    Diamonds
    diamonds
    Diffraction patterns
    electron diffraction
    Annealing
    diffraction patterns
    Diamond films
    Auger electron spectroscopy
    Photoelectron spectroscopy
    Ultraviolet spectroscopy
    annealing
    Auger spectroscopy
    electron spectroscopy
    energy
    Thin films
    photoelectric emission
    thin films

    Keywords

    • Annealing
    • Electron affinity
    • Homoepitaxial diamond
    • Surface ordering/re-ordering

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Engineering(all)

    Cite this

    Electron affinity and surface re-ordering of homoepitaxial diamond (100). / Wong, Ka Wai; Lee, Shuit Tong; Kwok, Raymund Wai Man; Lam, Yat Wah; Kawarada, Hiroshi.

    In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 35, No. 10, 1996, p. 5444-5447.

    Research output: Contribution to journalArticle

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