We report strong surface emission from an organic light-emitting diode in which the luminescent material resides between two nearly opaque metal electrodes. Experimental and theoretical analyses indicate that cross coupling between surface plasmons on opposite sides of the metal cathode layer enables the transmission of electroluminescence through the practically opaque metal. The application of this physical process has the potential to expand the range of device structures possible for organic light-emitting diodes and other electroluminescent devices.
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Gifford et al. (2002) studied this question.
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