Systematic conversion of single walled carbon nanotubes into n-type thermoelectric materials by molecular dopants

Yoshiyuki Nonoguchi, Kenji Ohashi, Rui Kanazawa, Koji Ashiba, Kenji Hata, Tetsuya Nakagawa, Chihaya Adachi, Tomoaki Tanase, Tsuyoshi Kawai

研究成果: Contribution to journalArticle査読

242 被引用数 (Scopus)

抄録

Thermoelectrics is a challenging issue for modern and future energy conversion and recovery technology. Carbon nanotubes are promising active thermoelectic materials owing to their narrow bandgap energy and high charge carrier mobility, and they can be integrated into flexible thermoelectrics that can recover any waste heat. We here report air-stable n-type single walled carbon nanotubes with a variety of weak electron donors in the range of HOMO level between ca.-4.4eV and ca.-5.6eV, in which partial uphill electron injection from the dopant to the conduction band of single walled carbon nanotubes is dominant. We display flexible films of the doped single walled carbon nanotubes possessing significantly large thermoelectric effect, which is applicable to flexible ambient thermoelectric modules.

本文言語英語
論文番号3344
ジャーナルScientific reports
3
DOI
出版ステータス出版済み - 2013

All Science Journal Classification (ASJC) codes

  • 一般

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