p-Type Schottky Contacts for Graphene Adjustable-Barrier Phototransistors
Carsten Strobel,
Carlos Alvarado Chavarin,
Martin Knaut
et al.
Abstract:The graphene adjustable-barriers phototransistor is an attractive novel device for potential high speed and high responsivity dual-band photodetection. In this device, graphene is embedded between the semiconductors silicon and germanium. Both n-type and p-type Schottky contacts between graphene and the semiconductors are required for this device. While n-type Schottky contacts are widely investigated, reports about p-type Schottky contacts between graphene and the two involved semiconductors are scarce. In th… Show more
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