Positioning of the Fermi Level in Graphene Devices with Asymmetric Metal Electrodes

<table>Gate response curves for a symmetric Pd-contact graphene device (1-2), an Au-contact device (3-4), and an asymmetric-contact device with Pd and Au electrodes (2-3). Inset: an optical microscope image of graphene with asymmetric hetero-metal electrodes (Pd, Au).</table>

Journal of Nanomaterials

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Figure 5

Figure 5: Positioning of the Fermi Level in Graphene Devices with Asymmetric Metal Electrodes 