GFET stands for graphene field-effect transistor. It replaces the traditional silicon channel with a single layer of graphene, taking advantage of graphene's extremely high carrier mobility. This allows the transistor to operate at much higher frequencies, making it highly desirable for RF and terahertz applications, though its lack of a bandgap makes it difficult to turn off completely.
The new RF front end uses a GFET to achieve a cutoff frequency well into the terahertz range.
Also heard as
- graphene field-effect transistor
Related terms
FET
A field-effect transistor controls the flow of electrical current using an electric field.
MOSFET
A metal-oxide-semiconductor field-effect transistor is a voltage-controlled switch used to amplify or switch electronic signals.
JFET
A type of field-effect transistor that uses a reverse-biased junction to control current.