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Domain structures of single layer graphene imaged with conductive probe atomic force microscopy
- Source :
- Surface and Interface Analysis. 44:768-771
- Publication Year :
- 2012
- Publisher :
- Wiley, 2012.
-
Abstract
- We report nanoscale domain boundaries on single layer graphene probed with conductive probe atomic force microscopy in ultrahigh vacuum. Graphene was prepared using the inductively coupled plasma chemical vapor deposition technique on a copper substrate. Current mapping revealed domains 50–100 nm in size on the single layer graphene. Stick slip images revealed a hexagonal structure of the graphene layer in the middle of the domain. The conductance on the domain boundary is lower than that inside the domain structure, which is associated with disorder on the boundary, while friction and adhesion measurements on the domain boundaries did not show any contrast. We found that the conductance contrast is prominent at high loads, suggesting the domain boundary plays a significant role in the charge transport properties of graphene under mechanical deformation. Copyright © 2012 John Wiley & Sons, Ltd.
- Subjects :
- Materials science
Condensed matter physics
Graphene
Conductance
Nanotechnology
Surfaces and Interfaces
General Chemistry
Chemical vapor deposition
Slip (materials science)
Condensed Matter Physics
Surfaces, Coatings and Films
law.invention
law
Materials Chemistry
Inductively coupled plasma
Electrical conductor
Nanoscopic scale
Graphene nanoribbons
Subjects
Details
- ISSN :
- 01422421
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Surface and Interface Analysis
- Accession number :
- edsair.doi...........3083b06766539620afa9ea176443cfd7