High-Performance Thermoelectric Bulk Colusite by Process Controlled Structural Disordering

Cédric Bourgès, Yohan Bouyrie, Andrew R. Supka, Rabih Al Rahal Al Orabi, Pierric Lemoine, Oleg I. Lebedev, Michihiro Ohta, Koichiro Suekuni, Vivian Nassif, Vincent Hardy, Ramzy Daou, Yuzuru Miyazaki, Marco Fornari, Emmanuel Guilmeau

研究成果: Contribution to journalArticle査読

56 被引用数 (Scopus)

抄録

High-performance thermoelectric bulk sulfide with the colusite structure is achieved by controlling the densification process and forming short-to-medium range structural defects. A simple and powerful way to adjust carrier concentration combined with enhanced phonon scattering through point defects and disordered regions is described. By combining experiments with band structure and phonons calculations, we elucidate, for the first time, the underlying mechanism at the origin of intrinsically low thermal conductivity in colusite samples as well as the effect of S vacancies and antisite defects on the carrier concentration. Our approach provides a controlled and scalable method to engineer high power factors and remarkable figures of merit near the unity in complex bulk sulfide such as Cu26V2Sn6S32 colusites.

本文言語英語
ページ(範囲)2186-2195
ページ数10
ジャーナルJournal of the American Chemical Society
140
6
DOI
出版ステータス出版済み - 2 14 2018

All Science Journal Classification (ASJC) codes

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

フィンガープリント

「High-Performance Thermoelectric Bulk Colusite by Process Controlled Structural Disordering」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