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MOLED: Simulation of Multilayer Organic Light Emitting Diodes

MOLED solves the dynamics of electrons and holes in multilayer Organic Light Emitting Diodes (OLED). The carriers are injected on the positive and negative electrodes of the device by tunneling through a potential barrier. Thermal excitations process across the barrier are also included. In the interior of the device the electron-hole recombination occurs when the two carriers are close enough, according to a model inspired from the one of Langevin. A part of these recombined pairs gives photons. The charge transport inside the organic material occurs through hopping. Several choices of mobility formula are available in the code. MOLED can be used for OLEDs of arbitrary number of layers. The output consists of numerous fields that describe device performance. For example, there are the current, the recombination and the charge density distributions, the electric field distribution, the current-voltage characteristics and the device internal quantum efficiency.

modeling. light emitting diodes; organic

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