Self-Organized Photonic Structures in Polymer Light-Emitting Diodes


  • We acknowledge the EPSRC (G. F.), the Cambridge European Trust and Robert Gardiner Fellowship (N. C.), Cambridge Display Technology (G.F.), St John's College (P. K. H. H.), ICI and the Isaac Newton Trust (W. T. S. H.) for financial support.


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The creation of photonic structures in thin polymer films is reported. This involves replicating a micrometer-sized pattern onto a (poly(ethylenedioxythiophene) doped with polystyrene sulfonic acid) PEDOT:PSS surface (see Figure) with conjugated polymers without compromising the efficiencies of the devices. The technique can be extended to flexible substrates, and in principle to conjugated polymer blends.