Tuning the electrical property of a single layer graphene nanoribbon by adsorption of planar molecular nanoparticles

Reetu Raj Pandey, Minoru Fukumori, Amin Termehyousefi, Masanori Eguchi, Daisuke Tanaka, Takuji Ogawa, Hirofumi Tanaka

研究成果: Article査読

9 被引用数 (Scopus)

抄録

In this study, a simple and fast approach of band gap formation in a single layer graphene nanoribbon (sGNR) is demonstrated by using hexaazatriphenylenehexacarbonitrile (HAT-CN6) as an adsorbate molecule. sGNRs were successfully synthesized through the unzipping of double-walled carbon nanotubes followed by casting HAT-CN6 in acetone solution to alter the electronic properties of the sGNRs. Then, the electrical property of a sGNR was measured using a field effect transistor structure and also by point-contact current imaging atomic force microscopy. The results demonstrate the formation of electron trapping sites with the nanoparticles and the neck structure of the sGNR near the adsorbed region of the molecule. Therefore, the charge carriers on the sGNR can only pass through the neck region, which works similarly to a narrow sGNR. Such a narrow sGNR has a lateral confinement of charge carriers around the neck region; hence, the device becomes semiconducting. The fabricated semiconducting sGNR could be widely used in electronic devices.

本文言語English
論文番号175704
ジャーナルNanotechnology
28
17
DOI
出版ステータスPublished - 2017 4月 3
外部発表はい

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 電子工学および電気工学

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