国立研究開発法人 産業技術総合研究所（以下「産総研」という）省エネルギー研究部門 後藤 陽介 主任研究員、李 哲虎 首席研究員、村田 正行 主任研究員は、国立大学法人 島根大学（以下「島根大学」という）総合理工学部 臼井 秀知 助教らと共同で、温度差と電流の向きを直交させることのできる特異な熱電材料（ゴニオ極性材料）の開発に成功しました。 一次エネルギーの多くは熱として排出されており、この未利用熱（廃熱）を有効活用するため、熱を電気に変換する熱電材料の開発が世界中で進められています。近年、高い性能を有する新材料の報告が相次いでいますが、実用化されているのは半世紀以上前に発見された、室温付近で動作するBi2Te3系材料のみです。室温より高い温度域で動作する熱電モジュールは実用化されていないことが、廃熱を用いた発電の進展を阻んでいます。特に、従来の熱電モジュールは熱流と発電方向が同じ「縦型」構
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