Thermal diode can control direction of heat flow
We’re all familiar with semiconductor diodes, whose function is to allow electricity to easily flow in one direction and impede its progress in the other. A thermal diode performs a similar gating function, only with heat energy instead of electrical energy. Up until now, this function has only been demonstrated in cold temperatures and at room temperatures. A team at the University of Nebraska-Lincoln, headlined by assistant professor Sidy Ndao and graduate student Mahmoud Elzouka, has come up with a device that can operate at temperatures as high as 600 K (620°F). Read more...
Refernece: Electronic Product Magazine