熱電応用に向けたナノドット含有階層構造によるフォノン散乱の促進

DOI Web Site Web Site 参考文献21件

書誌事項

タイトル別名
  • Enhancement of Phonon Scattering in Epitaxial Hierarchical Nanodot Structures for Thermoelectric Application
  • ネツデンオウヨウ ニ ムケタ ナノドット ガンユウ カイソウ コウゾウ ニ ヨル フォノン サンラン ノ ソクシン

この論文をさがす

説明

<p>Si films including hierarchical nanodot structures were developed using ultrathin SiO2 films. Scattering bodies with various size scales are expected to scatter phonons with various wavelengths. This idea is important for reduction of thermal conductivity because phonon, that is boson, with various wavelengths, can contribute to the heat transport. Here, in Si films including Si nanodot structures, the nanodots with various sizes reduced the thermal conductivity effectively in addition to increase of dopant activation rates. Furthermore, highly-doped Si films including Ge nanodots that have atomic scale and nanoscale phonon scattering bodies exhibited drastically-reduced thermal conductivity. This drastic reduction of thermal conductivity came from hierarchical structures that include nanodot structures working as strong phonon scattering bodies. This gives the guideline of control of phonon and carrier transport using nanostructures for high performance thermoelectric materials.</p>

収録刊行物

  • 表面と真空

    表面と真空 61 (5), 296-301, 2018-05-10

    公益社団法人 日本表面真空学会

参考文献 (21)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ