Field-effect transistor.

摘要

A field-effect transistor comprising a semiconductor substrate (11) having source and drain regions (12, 13) and a gate electrode (19), wherein a thin organic film including donor and acceptor molecules is provided between the semiconductor substrate (11) and the gate electrode (19). When a predetermined voltage is applied to the gate electrode, charge transfer occurs between the donor and acceptor molecules included in the thin organic film, thereby controlling the surface potential of the semiconductor substrate (11).