Graphene FETs: Issues and prospects

Current status and future outlook of graphene-based FETs (GFETs) have been reviewed. While its digital applications may find various challenges due mainly from the lack of the band gap, analog (RF) applications should be promising for GFETs. To fully enjoy the excellent transport properties of intrinsic graphene, we need to fully develop extrinsic technologies such as choice of the substrate, gate insulator, metal electrodes.