We report strong photoluminescence from a top-emitting organic light-emitting structure where emission takes place through a thin (55nm) silver film. We show that this emission is mediated via coupled surface plasmon-polariton modes. Our results show that the addition of a dielectric grating to otherwise planar structures, such as surface-emitting organic light-emitting diodes, may offer a way to increase the external efficiency of top-emitting organic light-emitting diodes.
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Wedge et al. (2004) studied this question.
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