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Image force effects at contacts in organic light emitting diodes

The effect of an image force on the barrier for the injection of the carrier from the electrode into the organic layer is shown to be essential for proper understanding of the metal/organic contact and, in particular, of recent results of internal photoemission experiments for metal/Alq(3) interfaces. While the calculation presented does not depend on the details of the carrier transport in the organic layer, the resulting value of the injection barrier is expected to determine the conduction regime of the device. (C) 1999 American Institute of Physics. [S0003-6951(99)02350-5]. [References: 19]

image force; organic light emitting diodes

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