Figure 7From: Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor depositionElectrical properties of the graphene samples. (a) Optical image of graphene based device. (b) Resistivity as a function of gate voltage (Vg) for the graphene device. (c-d) Carrier concentration and mobility at different gate voltages (ΔVg = −20, −10, 0, +10, +20 V).Back to article page