Recent progress in thermoelectric layered cobalt oxide thin films

DOI PDF Web Site 被引用文献2件 参考文献80件 オープンアクセス

書誌事項

公開日
2023-12-29
資源種別
journal article
権利情報
  • https://creativecommons.org/licenses/by/4.0
  • https://creativecommons.org/licenses/by/4.0
DOI
  • 10.1038/s41427-023-00520-w
公開者
Springer Science and Business Media LLC

説明

<jats:title>Abstract</jats:title><jats:p>Oxide-based thermoelectric materials that show a high figure of merit are promising because of their good chemical and thermal stabilities and their relative harmlessness compared with chalcogenide-based state-of-the-art thermoelectric materials. Although several high-<jats:italic>ZT</jats:italic> thermoelectric oxides (<jats:italic>ZT</jats:italic> > 1) have been reported thus far, their reliability levels are low due to the lack of careful observations of their stabilities at elevated temperatures. Herein, we review the epitaxial film growth and thermoelectric properties of representative p-type layered cobalt oxides: Na<jats:sub>3/4</jats:sub>CoO<jats:sub>2</jats:sub>, Ca<jats:sub>1/3</jats:sub>CoO<jats:sub>2</jats:sub>, Sr<jats:sub>1/3</jats:sub>CoO<jats:sub>2</jats:sub>, Ba<jats:sub>1/3</jats:sub>CoO<jats:sub>2</jats:sub>, and Ca<jats:sub>3</jats:sub>Co<jats:sub>4</jats:sub>O<jats:sub>9</jats:sub>. Among these specimens, Ba<jats:sub>1/3</jats:sub>CoO<jats:sub>2</jats:sub> and Ca<jats:sub>3</jats:sub>Co<jats:sub>4</jats:sub>O<jats:sub>9</jats:sub> are stable in air at elevated temperatures (~600 °C). The <jats:italic>ZT</jats:italic> of Ba<jats:sub>1/3</jats:sub>CoO<jats:sub>2</jats:sub> reaches ~ 0.55 at 600 °C in air, which is reliable and the highest among thermoelectric oxides. Moreover, this value is comparable to those of p-type PbTe and p-type SiGe.</jats:p>

収録刊行物

  • NPG Asia Materials

    NPG Asia Materials 15 (1), 67-, 2023-12-29

    Springer Science and Business Media LLC

被引用文献 (2)*注記

もっと見る

参考文献 (80)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ