Manifestation of plasmonic response in the detection of sub-terahertz radiation by graphene-based devices.


We report on the sub-terahertz (THz) (129-450 GHz) photoresponse of devices based on single layer graphene and graphene nanoribbons with asymmetric source and drain (vanadium and gold) contacts. Vanadium forms a barrier at the graphene interface, while gold forms an Ohmic contact. We find that at low temperatures (77 K) the detector responsivity rises with… (More)
DOI: 10.1088/1361-6528/aab7a5


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