Novel 3D-Rectification Mechanism of Terahertz Detection in Epitaxial Graphene Channel Transistors

Abstract

We developed terahertz (THz) detectors based on a high-quality epitaxial graphene-channel transistor. The bias dependencies of the responsivity indicate the primary contributions of plasmonic and photothermoelectric rectification mechanisms and suggest a distinctive signature of the third rectification mechanism called the 3D-rectification.