OPTOELECTRONIC DEVICES

摘要

The invention relates to integrated optoelectronic devices comprising light-emitting field-effect transistors. We describe an optoelectronic device comprising a light- emitting field transistor (LFET) with an organic semiconductor active layer and a waveguide integrated within the channel of the light-emitting field-effect transistor, wherein said waveguide comprises a material which has a higher refractive index than said organic semiconductor. W also describe a light-emitting organic field transistor integrated with a ridge or rib waveguide incorporated within the channel of the LFET; and a similar light-emitting organic field effect transistor in which the waveguide incorporates an optical feedback mechanism.