Transport and optical modeling of organic light-emitting diodes

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Abstract
We present detailed theoretical modeling of organic light-emitting diodes. We incorporate both optical and electrical modeling into one and thus achieve a more comprehensive picture of the device operation. The importance of including the exciton generation and emission rate in a transport model is highlighted and we find that in such devices the charge recombination zone is not necessarily identical to the exciton emission zone. Moreover, both the electrical and optical structure affect the exciton density distribution and thus also the externally measured light.