Probing the electronic structure of graphene sheets with various thicknesses by scanning transmission X-ray microscopy
Authors:
- 16 December 2013
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 103 (25) , 253110
Abstract
The electronic structure of an aggregation of graphene sheets with various thicknesses was probed by scanning transmission X-ray microscopy. A uniform oxidation of the graphene sheets in the flat area was observed regardless of the thickness, while in the folded area the result could be strongly affected by the geometry. Moreover, thick parts of the aggregation showed strong angle-dependence to the incident X-ray, while thin parts showed less angle-dependence, which might be related to the surface wrinkles and ripples. The electronic structure differences due to the geometry and thickness suggest a complicated situation in the aggregation of graphene sheets.Keywords
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