Out of equilibrium charge transport in molecular electronic devices

Using the Lindblad equation approach, we study the nonequilibrium stationary
state of a benzene ring connected to two reservoirs in the large bias regime, a prototype of a generic molecular electronic device. We show the emergence of an optimal working point (corresponding to a change in the monotonicity of the stationary current, as a function of the applied bias) and its robustness against chemical potential and bond disorder.