論文

査読有り
2015年11月

Ultrasensitive gas detection of large-area boron-doped graphene

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
  • Ruitao Lv
  • Gugang Chen
  • Qing Li
  • Amber McCreary
  • Andres Botello-Mendez
  • S. V. Morozov
  • Liangbo Liang
  • Xavier Declerck
  • Nestor Perea-Lopez
  • David A. Culleni
  • Simin Feng
  • Ana Laura Elias
  • Rodolfo Cruz-Silva
  • Kazunori Fujisawa
  • Morinobu Endo
  • Feiyu Kang
  • Jean-Christophe Charlier
  • Vincent Meunier
  • Minghu Pan
  • Avetik R. Harutyunyan
  • Konstantin S. Novoselov
  • Mauricio Terrones
  • 全て表示

112
47
開始ページ
14527
終了ページ
14532
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1073/pnas.1505993112
出版者・発行元
NATL ACAD SCIENCES

Heteroatom doping is an efficient way to modify the chemical and electronic properties of graphene. In particular, boron doping is expected to induce a p-type (boron)-conducting behavior to pristine (non-doped) graphene, which could lead to diverse applications. However, the experimental progress on atomic scale visualization and sensing properties of large-area boron-doped graphene (BG) sheets is still very scarce. This work describes the controlled growth of centimeter size, high-crystallinity BG sheets. Scanning tunneling microscopy and spectroscopy are used to visualize the atomic structure and the local density of states around boron dopants. It is confirmed that BG behaves as a p-type conductor and a unique croissant-like feature is frequently observed within the BG lattice, which is caused by the presence of boron-carbon trimers embedded within the hexagonal lattice. More interestingly, it is demonstrated for the first time that BG exhibits unique sensing capabilities when detecting toxic gases, such as NO2 and NH3, being able to detect extremely low concentrations (e.g., parts per trillion, parts per billion). This work envisions that other attractive applications could now be explored based on as-synthesized BG.

リンク情報
DOI
https://doi.org/10.1073/pnas.1505993112
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000365173100051&DestApp=WOS_CPL
ID情報
  • DOI : 10.1073/pnas.1505993112
  • ISSN : 0027-8424
  • Web of Science ID : WOS:000365173100051

エクスポート
BibTeX RIS