Concentration-dependent deuterium diffusion in diamondlike carbon films

T. Ahlgren (Corresponding Author), E. Vainonen, Jari Likonen, J. Keinonen

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)

    Abstract

    Diffusion of deuterium in diamondlike carbon films has been studied. The deuterium concentration profiles in D+-ion-implanted films were measured by secondary-ion-mass spectrometry. A model is proposed to describe the experimental depth profiles. In this model it was assumed that atomic D is the diffusing species, whereas D in clusters is immobile. The results show that the concentration of D clusters relative to the total D concentration increases when the total D concentration decreases, leading to a concentration-dependent diffusion. The diffusion coefficients obtained for atomic D resulted in an activation energy of 2.9±0.1 eV. The solid solubility of D was observed to decrease with increasing temperature.
    Original languageEnglish
    Pages (from-to)9723-9726
    JournalPhysical Review B: Condensed Matter and Materials Physics
    Volume57
    Issue number16
    DOIs
    Publication statusPublished - 1998
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Deuterium
    Carbon films
    deuterium
    carbon
    Secondary ion mass spectrometry
    Solubility
    Activation energy
    Ions
    profiles
    secondary ion mass spectrometry
    solubility
    diffusion coefficient
    activation energy
    Temperature
    ions
    temperature

    Cite this

    @article{79d840ba30034e73a3d00d818f3ba0c4,
    title = "Concentration-dependent deuterium diffusion in diamondlike carbon films",
    abstract = "Diffusion of deuterium in diamondlike carbon films has been studied. The deuterium concentration profiles in D+-ion-implanted films were measured by secondary-ion-mass spectrometry. A model is proposed to describe the experimental depth profiles. In this model it was assumed that atomic D is the diffusing species, whereas D in clusters is immobile. The results show that the concentration of D clusters relative to the total D concentration increases when the total D concentration decreases, leading to a concentration-dependent diffusion. The diffusion coefficients obtained for atomic D resulted in an activation energy of 2.9±0.1 eV. The solid solubility of D was observed to decrease with increasing temperature.",
    author = "T. Ahlgren and E. Vainonen and Jari Likonen and J. Keinonen",
    note = "Project code: KET41481",
    year = "1998",
    doi = "10.1103/PhysRevB.57.9723",
    language = "English",
    volume = "57",
    pages = "9723--9726",
    journal = "Physical Review B",
    issn = "2469-9950",
    publisher = "American Physical Society",
    number = "16",

    }

    Concentration-dependent deuterium diffusion in diamondlike carbon films. / Ahlgren, T. (Corresponding Author); Vainonen, E.; Likonen, Jari; Keinonen, J.

    In: Physical Review B: Condensed Matter and Materials Physics, Vol. 57, No. 16, 1998, p. 9723-9726.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Concentration-dependent deuterium diffusion in diamondlike carbon films

    AU - Ahlgren, T.

    AU - Vainonen, E.

    AU - Likonen, Jari

    AU - Keinonen, J.

    N1 - Project code: KET41481

    PY - 1998

    Y1 - 1998

    N2 - Diffusion of deuterium in diamondlike carbon films has been studied. The deuterium concentration profiles in D+-ion-implanted films were measured by secondary-ion-mass spectrometry. A model is proposed to describe the experimental depth profiles. In this model it was assumed that atomic D is the diffusing species, whereas D in clusters is immobile. The results show that the concentration of D clusters relative to the total D concentration increases when the total D concentration decreases, leading to a concentration-dependent diffusion. The diffusion coefficients obtained for atomic D resulted in an activation energy of 2.9±0.1 eV. The solid solubility of D was observed to decrease with increasing temperature.

    AB - Diffusion of deuterium in diamondlike carbon films has been studied. The deuterium concentration profiles in D+-ion-implanted films were measured by secondary-ion-mass spectrometry. A model is proposed to describe the experimental depth profiles. In this model it was assumed that atomic D is the diffusing species, whereas D in clusters is immobile. The results show that the concentration of D clusters relative to the total D concentration increases when the total D concentration decreases, leading to a concentration-dependent diffusion. The diffusion coefficients obtained for atomic D resulted in an activation energy of 2.9±0.1 eV. The solid solubility of D was observed to decrease with increasing temperature.

    U2 - 10.1103/PhysRevB.57.9723

    DO - 10.1103/PhysRevB.57.9723

    M3 - Article

    VL - 57

    SP - 9723

    EP - 9726

    JO - Physical Review B

    JF - Physical Review B

    SN - 2469-9950

    IS - 16

    ER -