カーボンナノチューブを鋳型とした一次元カルコゲン伝導体の創製

• 藤森 利彦

  信州大学環境・エネルギー材料科学研究所 国立研究開発法人科学技術振興機構，さきがけ

書誌事項

タイトル別名

• Carbon nanotube-template synthesis of artificial one-dimensional conductors using chalcogen elements
• カーボンナノチューブ オ イガタ ト シタ イチジゲン カルコゲン デンドウタイ ノ ソウセイ

抄録

We review our recent progress on the fabrication of artificial one-dimensional (1D) conductors using the carbon nanotube-template method. We demonstrate that carbon nanotubes (CNTs) have the ability to stabilize previously-unobserved 1D crystals of chalcogen elements inside their quasi-1D channels. Most importantly, we found by experiment and theory that 1D sulfur crystals, which consist of monatomic zigzag or linear conformations, exhibit a metallic character inside CNTs. Despite the fact that both sulfur and selenium show similar molecular structures in the bulk phase, selenium forms double-helices inside double-wall CNTs. Our theoretical calculations predict that selenium double-helices have a very small bandgap energy, compared to that of the bulk selenium chain. We foresee a new branch of fundamental metal-insulator transitions caused by the nanospace, thus paving the way toward future applications of non-metallic sulfur and/or selenium as a conducting nanowire.

収録刊行物

• 炭素

  炭素 2016 (273), 89-95, 2016

  炭素材料学会

キーワード

• Carbon nanotube
• Chalcogen elements
• One-dimensional conductor

詳細情報

• CRID: 1390282679205471104
• NII論文ID: 130005164769
• NII書誌ID: AN00140335
• DOI: 10.7209/tanso.2016.89
• ISSN: 18845495
• ISSN: 03715345
• NDL書誌ID: 027497425
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027497425
• Web Site: https://www.jstage.jst.go.jp/article/tanso/2016/273/2016_027304/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可