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Title: Graphene Monolayer Rotation on Ni(111) Facilities Bilayer Graphene Growth

Synthesis of bilayer graphene by chemical vapor deposition is of importance for graphene-based field effect devices. Here, we demonstrate that bilayer graphene preferentially grows by carbon-segregation under graphene sheets that are rotated relative to a Ni(111) substrate. Rotated graphene monolayer films can be synthesized at growth temperatures above 650 C on a Ni(111) thin-film. The segregated second graphene layer is in registry with the Ni(111) substrate and this suppresses further C-segregation, effectively self-limiting graphene formation to two layers.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1049304
Report Number(s):
BNL--98428-2012-JA
Journal ID: ISSN 0003-6951; APPLAB; KC020401H; TRN: US201217%%637
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 100; Journal Issue: 24
Research Org:
Brookhaven National Laboratory (BNL) Center for Functional Nanomaterials
Sponsoring Org:
USDOE SC OFFICE OF SCIENCE (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHEMICAL VAPOR DEPOSITION; ROTATION; SUBSTRATES; SYNTHESIS functional nanomaterials