Design method of nitrogen-doped modified graphene thermal rectifier

The invention discloses a design method of a nitrogen-doped modified graphene thermal rectifier and adopted in micro-nano electronic manufacture. The design method comprises the following steps of (1) performing nitrogen atom doping to graphene according to a thermal rectification mechanism to obtain a triangular nitrogen-doped graphene structure; (2) adding constant temperature baths at two ends of a nitrogen-doped graphene structure so as to set different temperatures; (3) continuously adjusting and controlling exchange frequency of atom kinetic energy in a man-made mode to seek optimal convective heat-transfer coefficients; (4) calculating thermal conductivity and thermal rectification coefficients of the graphene structure under the condition of different temperatures. The design method adopts nitrogen atoms to replace carbon atoms and change the graphene structure, enables the inside of the whole structure to be asymmetric, adjusts and controls exchange frequency of the kinetic energy, utilizes a rectification effect mechanism to achieve the controllability in the heat-transfer direction and prolongs the service life of electronic devices.