Correlation of the 5.0- and 7.6-eV absorption bands in SiO2 with oxygen vacancy

Ryoichi Tohmon, Hiroyasu Mizuno, Yoshimichi Ohki, Kotoku Sasagane, Kaya Nagasawa, Yoshimasa Hama

    Research output: Contribution to journalArticle

    298 Citations (Scopus)

    Abstract

    Various uv and vacuum-uv optical-absorption bands found in as-manufactured high-purity SiO2 glass were studied. Two types of absorption bands were found near 5.0 eV, one of which is attributed to the oxygen vacancy (?Si-Si?). The absorption band at 7.6 eV is also found to be caused by the same oxygen vacancy. Observation of the decay lifetime of photoluminescence and calculations using the ab initio molecular-orbital program show that the 7.6-eV band is caused by a singlet-to-singlet transition, while the 5.0-eV band is caused by a singlet-to-triplet transition.

    Original languageEnglish
    Pages (from-to)1337-1345
    Number of pages9
    JournalPhysical Review B
    Volume39
    Issue number2
    DOIs
    Publication statusPublished - 1989

    Fingerprint

    Oxygen vacancies
    Absorption spectra
    absorption spectra
    oxygen
    Molecular orbitals
    Light absorption
    molecular orbitals
    Photoluminescence
    purity
    optical absorption
    Vacuum
    photoluminescence
    Glass
    life (durability)
    vacuum
    glass
    decay

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Correlation of the 5.0- and 7.6-eV absorption bands in SiO2 with oxygen vacancy. / Tohmon, Ryoichi; Mizuno, Hiroyasu; Ohki, Yoshimichi; Sasagane, Kotoku; Nagasawa, Kaya; Hama, Yoshimasa.

    In: Physical Review B, Vol. 39, No. 2, 1989, p. 1337-1345.

    Research output: Contribution to journalArticle

    Tohmon, R, Mizuno, H, Ohki, Y, Sasagane, K, Nagasawa, K & Hama, Y 1989, 'Correlation of the 5.0- and 7.6-eV absorption bands in SiO2 with oxygen vacancy', Physical Review B, vol. 39, no. 2, pp. 1337-1345. https://doi.org/10.1103/PhysRevB.39.1337
    Tohmon, Ryoichi ; Mizuno, Hiroyasu ; Ohki, Yoshimichi ; Sasagane, Kotoku ; Nagasawa, Kaya ; Hama, Yoshimasa. / Correlation of the 5.0- and 7.6-eV absorption bands in SiO2 with oxygen vacancy. In: Physical Review B. 1989 ; Vol. 39, No. 2. pp. 1337-1345.
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    AU - Sasagane, Kotoku

    AU - Nagasawa, Kaya

    AU - Hama, Yoshimasa

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