Transport properties of single-component organic conductors, TED derivatives

Yuka Kobayashi, Jean Baptiste Vaney, Takao Mori, Yoshitaka Matsushita, Takeshi Terauchi, Yoshihiko Takeda, Shinjiro Yagyu

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Narrow-gap semiconductors with high conductivity and mobility are an important class of materials for various applications, especially for thermoelectric and optical device applications. Herein, we designed and synthesized novel organic narrow-gap semiconductors, which are modified forms of the main skeleton of a single-component pure organic metal, tetrathiafulvalene-extended dicarboxylate (TED). Molecular design of the TED derivatives with substituent groups on the skeleton led to highly-conducting semiconductors even when powder crystalline samples were used. Their thermopower is greater than that of metallic TED without a substituent group, demonstrating the successful tuning of carrier concentration in the TED system by molecular design. Near-/middle-infrared (IR) diffuse reflectance measurements revealed each band gap, and optical parameters extracted from the spectra evaluated the carrier concentration and mobility of the TED derivatives with fitting calculations on the basis of a Drude-Lorentz dielectric function.

本文言語English
ページ(範囲)653-658
ページ数6
ジャーナルMolecular Systems Design and Engineering
2
5
DOI
出版ステータスPublished - 2017 12月
外部発表はい

ASJC Scopus subject areas

  • 化学(その他)
  • 化学工学(その他)
  • 生体医工学
  • エネルギー工学および電力技術
  • プロセス化学およびプロセス工学
  • 産業および生産工学
  • 材料化学

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