Design and power generation of tilted Cu/Fe_2V(Al_(0.9)Si_(0.1)) multilayers via the transverse thermoelectric effect

摘要

We have conducted a computer simulation of thermoelectric ( TE) properties in tilted Cu= Fe2V(Al0:9Si0:1) multilayers. Such a tilted configuration yields a transverse ( off- diagonal) TE effect whereby an electric current can flow perpendicularly to the temperature gradient. Appropriately controlling the relative Cu thickness and the tilting angle realizes a higher power factor than that of the parent TE materials. In our multilayers, the estimated power factor exceeds 8mW= K2 m, being approximately three times higher than that of the parent TE materials. On the basis of the simulation results, we have fabricated several modules and achieved a maximum power of 4.83mW in the module with a relative Cu thickness of 0.7 and a tilting angle of 30 degrees.