A series circuit of thermal rectifiers: an effective way to enhance rectification ratio

摘要

The low rectification ratio limits the application of thermal rectifiers. Inthis paper, it is found that a series circuit of thermal rectifiers inasymmetric graphene/graphene phononic crystal (GPnC) structures can improverectification significantly. The simulations by using non-equilibrium moleculardynamics (NEMD) are performed. Moreover, the size effect on thermalrectification is also studied and discussed.