Mean Field Steady State Kinetics

Spatial disorder is essential in describing the kinetics of many systems, from chemical reactions to excitons moving in organic semiconducting devices. The primary theoretical tool for studying systems with spatial disorder is Kinetic Monte Carlo, but this is often prohibitively expensive. We have developed a new method, called the Mean Field Steady State method, which allows for the computation of steady state populations in systems with a distribution of rate constants at a fraction of the cost. We accomplish this by making the mean field approxmation, speeding up the calculation, but solving the model self-consistently to incorporate some effects of the disorder. We are currently using this method to study external quantum efficiency roll-off in organic light emitting diodes (OLEDs).