Sandia National Laboratories

Author Of 1 Presentation

OEDDIP - Optical Emitter/Detector Devices and Integrated Photonics

TuE4.1 - GRAPHENE-BASED PHOTOFET FOR OPTICAL AND RADIATION DETECTION

Abstract

Abstract

We demonstrated graphene-based photo-field-effect-transistors fabricated from low-doped semiconductor substrates with various dielectrics. In deep depletion, carriers generated in the semiconductor accumulate at the dielectric-semiconductor interface modifying graphene’s conductivity. Consequently, monitoring graphene’s source-drain current permits real-time readout for detection with built-in gain from graphene's large transconductance.

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