Fabrication of patterned flexible graphene devices via facile direct transfer of as-grown bi-layer graphene

Heun Park, Kyung Hoon Kim, Jangyeol Yoon, Kuk Ki Kim, Seung Min Park, Jeong Sook Ha

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report on the fabrication of patterned flexible graphene devices via a facile direct transfer of bi-layer graphene grown on alumina (Al 2 O 3 ) substrate, and the use of Ag nanowire stickers as flexible electrodes. Patterned polydimethylsiloxane (PDMS) stamps coated with vaporized dimethylformamide (DMF) are utilized to transfer as-grown graphene directly onto a flexible polyethylene terephthalate (PET) substrate. The facile direct transfer is attributed to the enhanced adhesion of the bi-layer graphene to PDMS, due to DMF-coating, as well as the weak adhesion between the bi-layer graphene and the Al 2 O 3 substrate. In this way, flexible patterned graphene devices have been fabricated with Ag nanowire stickers as electrodes. Stable electrical conduction characteristics were measured over repetitive bending with a bending radius down to 5 mm.

Original languageEnglish
Pages (from-to)235-240
Number of pages6
JournalApplied Surface Science
Volume328
DOIs
Publication statusPublished - 2015 Feb 15

Keywords

  • Ag nanowire sticker
  • Direct transfer
  • Flexible device
  • Patterned graphene
  • Polydimethylsiloxane (PDMS) stamp

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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