Synthesis and properties of crystalline TiO2 films deposited by a HIPIMS+ technique

Q. M. Wang, Se-Hun Kwon, Kwun Nam Hui, Doo-In Kim, Kwan San Hui, Kwang Ho Kim

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    Crystalline TiO 2 thin films were synthesized on the Si and glass substrates by reactive sputtering in a HIPIMS coating system. The films with a bit oxygen deficiency were deposited on the Si and glass substrates at oxygen flux rate of 10 sccm. The phase structure of the films changed with varying the parameters the MPP power pulse, the bias voltage, and working gas pressure. Anatase-dominant, anatase-rutile, and rutile films can be obtained by controlling the deposition parameters. The anatase-dominant and anatase-rutile TiO 2 films possess good photoinduced hydrophilicity and photocatalytic properties. The rutile films exhibited high dielectric constant. The related mechanism and potential application was discussed.

    Original languageEnglish
    Pages (from-to)90-95
    Number of pages6
    JournalVacuum
    Volume89
    Early online date3 Dec 2011
    DOIs
    Publication statusPublished - Mar 2013

    Keywords

    • Dielectric constant
    • High power impulse magnetron sputtering
    • Phase structure
    • Photocatalytic properties
    • TiO2 film

    Cite this