Nanofabrication of heteromolecular organic nanostructures on epitaxial graphene via room temperature feedback-controlled lithography

Qing Hua Wang, Mark C Hersam

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Nanoscale control of surface chemistry holds promise for tailoring the electronic, optical, and chemical properties of graphene. Toward this end, the nanofabrication of sub-5-nm heteromolecular organic nanostructures is demonstrated on epitaxial graphene using room temperature ultrahigh vacuum scanning tunneling microscopy. In particular, monolayers of the organic semiconductor 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) are nanopatterned on epitaxial graphene using feedback-controlled lithography (FCL) and then used as chemical resists to template the deposition of N,N′-dioctyl-3,4,9,10-perylene-tetracarboxylic diimide (PTCDI-C8). The generality of this FCL-based nanofabrication procedure suggests its applicability to a wide range of fundamental studies and prototype device fabrication on chemically functionalized graphene.

Original languageEnglish
Pages (from-to)589-593
Number of pages5
JournalNano Letters
Volume11
Issue number2
DOIs
Publication statusPublished - Feb 9 2011

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nanofabrication
Nanotechnology
Graphene
Lithography
Nanostructures
graphene
lithography
Perylene
Feedback
room temperature
Temperature
Semiconducting organic compounds
organic semiconductors
Ultrahigh vacuum
Scanning tunneling microscopy
Surface chemistry
chemical properties
Electronic properties
Chemical properties

Keywords

  • Graphene
  • nanolithography
  • organic functionalization
  • scanning tunneling microscopy
  • self-assembled monolayer

ASJC Scopus subject areas

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

Cite this

Nanofabrication of heteromolecular organic nanostructures on epitaxial graphene via room temperature feedback-controlled lithography. / Wang, Qing Hua; Hersam, Mark C.

In: Nano Letters, Vol. 11, No. 2, 09.02.2011, p. 589-593.

Research output: Contribution to journalArticle

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