Effects of defect density on ultrathin graphene-based metal diffusion barriers

Sooyeoun Oh, Younghun Jung, Ji Hyun Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The authors investigated the effects of defect density on the performance of monolayer graphene as a barrier to metal diffusion. The defects were introduced to the graphene by controlled ultraviolet-ozone irradiation. The barrier performance of pristine graphene was found to be superior to that of defective graphene at temperatures up to 700°C. Changes in surface morphology were more prevalent in the defective graphene-based films than in the pristine graphene-based film; the thermal stability of graphene films depends on their defect density. Defect density was found to be a determining factor in the barrier performance of graphene.

Original languageEnglish
Article number061510
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume33
Issue number6
DOIs
Publication statusPublished - 2015 Aug 19

Fingerprint

Graphite
Diffusion barriers
Defect density
Graphene
graphene
Metals
defects
metals
Ozone
ozone
Surface morphology
Monolayers
Thermodynamic stability
thermal stability
Irradiation
Defects
irradiation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Effects of defect density on ultrathin graphene-based metal diffusion barriers. / Oh, Sooyeoun; Jung, Younghun; Kim, Ji Hyun.

In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 33, No. 6, 061510, 19.08.2015.

Research output: Contribution to journalArticle

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