Superstructures Based upon n- and p-Type Organic Semiconductors: Toward Light-Emitting Device Applications
2012
We have made organic light-emitting field-effect transistors (OLEFETs) using superstructures composed of layered n- and p-type organic semiconductor crystals. The superstructures are fabricated by lamination of the crystals via physical adsorption. The drain and source electrodes made of different kinds of metal are attached to both the upper and lower surfaces of each crystal. Under application of direct-current voltages to the drain and source electrodes, the superstructure OLEFETs emit bright light. The result indicates that the superstructures based on both types of organic crystals are useful for light-emitting devices.
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