Two-minute assembly of pristine large-area graphene based films

Jongwon Shim, Je Moon Yun, Taeyeong Yun, Pilnam Kim, Kyung Eun Lee, Won Jun Lee, Ryong Ryoo, David J. Pine, Gi Ra Yi, Sang Ouk Kim

Research output: Contribution to journalArticlepeer-review


We report a remarkably rapid method for assembling pristine graphene platelets into a large area transparent film at a liquid surface. Some 2-3 layer pristine graphene platelets temporally solvated with N-methyl-2-pyrrolidone (NMP) are assembled at the surface of a dilute aqueous suspension using an evaporation-driven Rayleigh-Taylor instability and then are driven together by Marangoni forces. The platelets are fixed through physical binding of their edges. Typically, 8-cm-diameter circular graphene films are generated within two minutes. Once formed, the films can be transferred onto various substrates with flat or textured topologies. This interfacial assembly protocol is generally applicable to other nanomaterials, including 0D fullerene and 1D carbon nanotubes, which commonly suffer from limited solution compatibility.

Original languageEnglish (US)
Pages (from-to)1388-1393
Number of pages6
JournalNano Letters
Issue number3
StatePublished - Mar 12 2014


  • Graphene
  • assembly
  • film
  • interface

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


Dive into the research topics of 'Two-minute assembly of pristine large-area graphene based films'. Together they form a unique fingerprint.

Cite this