Light-emitting ambipolar organic heterostructure field-effect transistor

We have investigated ambipolar charge injection and transport in organic field-effect transistors (OFETs) as prerequisites for a light-emitting organic field-effect transistor (LEOFET). OFETs containing a single material as active layer generally function either as a p-or an n-channel device. Therefore, ambipolar device operation over a wide range of operating voltages is difficult to realize. Here, we present a highly asymmetric heterostructure OFET architecture using the hole transport material pentacene and the ...