Transmission electron microscopy study of Sn-Doped sintered indium oxide

Yoshimitsu Ishikawa, Hitoshi Nagayama, Hirokuni Hoshino, Michiharu Ohgai, Naoya Shibata, Takahisa Yamamoto, Yuichi Ikuhara

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    Microstructures of Sn-doped sintered indium oxide were investigated by transmission electron microscopy. It was found that Sn-rich nanosized precipitates were formed inside the ITO grains, in addition to the secondary phases of In4Sn3O12 formed at grain boundaries. By nanobeam electron diffraction analysis, the crystal structure of the nanosized precipitates was determined to be the fluorite structure, which is different from the bixbyite structure of the ITO matrix. The structural change in the Sn-rich nanosized precipitates can be explained by the insertion of O2- ions in the vacancy sites of the bixbyite structure during the substitution of In3+ sites by Sn4+.

    Original languageEnglish
    Pages (from-to)959-963
    Number of pages5
    JournalMaterials Transactions
    Issue number5
    Publication statusPublished - 2009 May


    • Bixbyite structure
    • Fluorite structure
    • Precipitate
    • Tin-doped indium oxide

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering


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