Graphene on Gallium Arsenide: Engineering the visibility
arXiv:0907.4080 · doi:10.1063/1.3224910
Abstract
Graphene consists of single or few layers of crystalline ordered carbon atoms. Its visibility on oxidized silicon (Si/SiO\_2) enabled its discovery and spawned numerous studies of its unique electronic properties. The combination of graphene with the equally unique electronic material gallium arsenide (GaAs) has up to now lacked such easy visibility. Here we demonstrate that a deliberately tailored GaAs/AlAs (aluminum arsenide) multi-layer structure makes graphene just as visible on GaAs as on Si/SiO\_2. We show that standard microscope images of exfoliated graphite on GaAs/AlAs suffice to identify mono-, bi-, and multi-layers of graphene. Raman data confirm our results.
12 pages, 1 table, 3 figures
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Cited by in corpus (8)
- Imaging ellipsometry of graphene
- Surface acoustic wave propagation in monolayer graphene
- Precision quantization of Hall resistance in transferred graphene
- Magneto-Transport Properties of Exfoliated Graphene on GaAs
- Bilayer Graphene Quantum Dot Defined by Topgates
- Spotting 2-D Atomic Layers on Aluminum Nitride Thin Films
- Effect of piezoelectric substrate on phonon-drag thermopower in monolayer graphene
- Capacitive coupling in hybrid Graphene-GaAs nanostructures