Electroluminescence from organic semiconductorsin patterned microcavities

The authors have fabricated light-emitting diodes with emission peaks from 490 to 630 nm using planar microcavity tailored luminescence from a single organic semiconductor. The optical thickness of the microcavities is controlled with a patterned inert filler. This approach obviates the need to integrate three separate emissive materials in the manufacture of full colour electroluminescent displays.