[Invited] Flexible GHz Frequency and Low-Power Nanoelectronics Based on 2D Nanomaterials

In this paper, substantial recent progress on graphene and transitional metal dichalcogenides on flexible substrates and the resulting high-performance electronic properties will be highlighted. Nearly defect-free monolayer graphene can now be synthesized by CVD at large-scales with material quality comparable to ex-foliated natural flakes. Fabricated transistor devices from CVD graphene on polyimide now readily afford transit frequencies around 25GHz, sufficient to realize radio-frequency circuits. Exfoliated dichalcogenides offer a route for basic experimental studies on soft substrates. MoS2 transistors on polyimide offer electronic performance comparable to devices on hard silicon substrates, including high on-off current ratio, near-ideal subthreshold swing, and current saturation. Device failure at high strains are either due to dielectric cracks or buckle delamination.