Modification of electronic properties of graphene with self-assembled monolayers

B. Lee, Y. Chen, F. Duerr, D. Mastrogiovanni, E. Garfunkel, E. Y. Andrei, V. Podzorov

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Integration of organic and inorganic electronic materials is one of the emerging approaches to achieve novel material functionalities. Here, we demonstrate a stable self-assembled monolayer of an alkylsilane grown at the surface of graphite and graphene. Detailed characterization of the system using scanning probe microscopy, X-ray photoelectron spectroscopy, and transport measurements reveals the monolayer structure and its effect on the electronic properties of graphene. The monolayer induces a strong surface doping with a high density of mobile holes (n > 1013 cm-2). The ability to tune electronic properties of graphene via stable molecular self-assembly, including selective doping of steps, edges, and other defects, may have important implications in future graphene electronics.

Original languageEnglish
Pages (from-to)2427-2432
Number of pages6
JournalNano letters
Volume10
Issue number7
DOIs
Publication statusPublished - Jul 14 2010

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Keywords

  • Doping of graphene
  • Graphene
  • Graphene edge functionalization
  • Self-assembled monolayers
  • Transport in graphene

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Lee, B., Chen, Y., Duerr, F., Mastrogiovanni, D., Garfunkel, E., Andrei, E. Y., & Podzorov, V. (2010). Modification of electronic properties of graphene with self-assembled monolayers. Nano letters, 10(7), 2427-2432. https://doi.org/10.1021/nl100587e