Realization of a high mobility dual-gated graphene field-effect transistor with Al2O3 dielectric
Realization of a high mobility dual-gated graphene field-effect transistor with Al2O3 dielectric
We fabricate and characterize dual-gated graphene field-effect transistors using Al2O3 as top-gate dielectric. We use a thin Al film as a nucleation layer to enable the atomic layer deposition of Al2O3. Our devices show mobility values of over 8000 cm2/V s at room temperature, a finding which indicates that the …