ORGANIC FIELD-EFFECT BIPOLAR-TRANSISTORS

Organic field-effect transistors (FETs) which employ two carefully sel ected active materials can function as n channel, p channel, or both n - and p-channel devices. It is shown that under an appropriate set of bias conditions the channel current in FETs with alpha-hexathienylene (alpha-6T) and C-60 active layers consist of electron and hole compone nts that are injected from the source and drain contacts into the C-60 and alpha-6T layers, respectively. (C) 1996 American Institute of Phy sics.