Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application

Taeyoung Kim, Hyeongkeun Kim, Soon Woo Kwon, Yena Kim, Won Kyu Park, Dae Ho Yoon, A. Rang Jang, Hyeon Suk Shin, Kwang Suck Suh, Woo Seok Yang

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We report on a method for the large-scale production of graphene micropatterns by a self-assembly mediated process. The evaporation-induced self-assembly technique was engineered to produce highly ordered graphene patterns on flexible substrates in a simplified and scalable manner. The crossed stripe graphene patterns have been produced over a large area with regions consisting of single- and two-layer graphene. Based on these graphene patterns, flexible graphene-based field effect transistors have been fabricated with an ion-gel gate dielectric, which operates at low voltages of < 2 V with a hole and electron mobility of 214 and 106 cm 2/V·s, respectively. The self-assembly approach described here may pave the way for the nonlithographic production of graphene patterns, which is scalable to large areas and compatible with roll-to-roll system.

Original languageEnglish
Pages (from-to)743-748
Number of pages6
JournalNano Letters
Volume12
Issue number2
DOIs
Publication statusPublished - 2012 Feb 8

Fingerprint

Graphite
Self assembly
Graphene
self assembly
graphene
Hole mobility
Electron mobility
Gate dielectrics
hole mobility
Field effect transistors
electron mobility
low voltage
Evaporation
field effect transistors
Gels
evaporation
gels
Ions
Electric potential
Substrates

Keywords

  • field effect transistor
  • flexible electronics
  • Graphene
  • large-area
  • patterning
  • self-assembly

ASJC Scopus subject areas

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

Cite this

Kim, T., Kim, H., Kwon, S. W., Kim, Y., Park, W. K., Yoon, D. H., ... Yang, W. S. (2012). Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application. Nano Letters, 12(2), 743-748. https://doi.org/10.1021/nl203691d

Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application. / Kim, Taeyoung; Kim, Hyeongkeun; Kwon, Soon Woo; Kim, Yena; Park, Won Kyu; Yoon, Dae Ho; Jang, A. Rang; Shin, Hyeon Suk; Suh, Kwang Suck; Yang, Woo Seok.

In: Nano Letters, Vol. 12, No. 2, 08.02.2012, p. 743-748.

Research output: Contribution to journalArticle

Kim, T, Kim, H, Kwon, SW, Kim, Y, Park, WK, Yoon, DH, Jang, AR, Shin, HS, Suh, KS & Yang, WS 2012, 'Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application', Nano Letters, vol. 12, no. 2, pp. 743-748. https://doi.org/10.1021/nl203691d
Kim, Taeyoung ; Kim, Hyeongkeun ; Kwon, Soon Woo ; Kim, Yena ; Park, Won Kyu ; Yoon, Dae Ho ; Jang, A. Rang ; Shin, Hyeon Suk ; Suh, Kwang Suck ; Yang, Woo Seok. / Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application. In: Nano Letters. 2012 ; Vol. 12, No. 2. pp. 743-748.
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