Transport properties and thermoelectric performance of (Zn1-yMgy)1-xAlxO

Toshiki Tsubota, Michitaka Ohtaki, Koichi Eguchi, Hiromichi Arai

    研究成果: ジャーナルへの寄稿学術誌査読

    80 被引用数 (Scopus)

    抄録

    Addition of MgO to Al-doped ZnO was successful in reduction of the phonon thermal conductivity, κph, in order to suppress the unfavorably high thermal conductivity, κ, of the material in terms of applications to thermoelectric conversion. The electrical conductivity, σ, of Zn0.98Al0.02O decreased with increasing amount of the added MgO, whereas the Seebeck coefficient was virtually unchanged up to (Zn0.9Mg0.1)0.98Al0.02O. Further Al2O3 doping was ineffective in improving σ. The carrier mobility decreased with increasing amount of the added MgO but was independent of the extent of the Al doping. In spite of the significant suppression of κ, the figure of merit was smaller for the MgO-added samples because of the marked decrease of σ.

    本文言語英語
    ページ(範囲)409-412
    ページ数4
    ジャーナルJournal of Materials Chemistry
    8
    2
    DOI
    出版ステータス出版済み - 2月 1998

    !!!All Science Journal Classification (ASJC) codes

    • 化学 (全般)
    • 材料化学

    フィンガープリント

    「Transport properties and thermoelectric performance of (Zn1-yMgy)1-xAlxO」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル