A robust highly aligned DNA nanowire array-enabled lithography for graphene nanoribbon transistors

Seok Hee Kang, Wan Sik Hwang, Zhiqun Lin, Se Hun Kwon, Suck Won Hong

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Because of its excellent charge carrier mobility at the Dirac point, graphene possesses exceptional properties for high-performance devices. Of particular interest is the potential use of graphene nanoribbons or graphene nanomesh for field-effect transistors. Herein, highly aligned DNA nanowire arrays were crafted by flow-assisted self-assembly of a drop of DNA aqueous solution on a flat polymer substrate. Subsequently, they were exploited as "ink" and transfer-printed on chemical vapor deposited (CVD)-grown graphene substrate. The oriented DNA nanowires served as the lithographic resist for selective removal of graphene, forming highly aligned graphene nanoribbons. Intriguingly, these graphene nanoribbons can be readily produced over a large area (i.e., millimeter scale) with a high degree of feature-size controllability and a low level of defects, rendering the fabrication of flexible two terminal devices and field-effect transistors.

Original languageEnglish
Pages (from-to)7913-7920
Number of pages8
JournalNano Letters
Volume15
Issue number12
DOIs
StatePublished - 9 Dec 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

Keywords

  • DNA nanowire array-enabled lithography
  • graphene nanoribbon
  • self-assembly
  • transistor

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