Improving materials that convert heat to electricity and vice-versa

Thermoelectric materials can be used to turn waste heat into electricity or to provide refrigeration without any liquid coolants, and a research team from the University of Michigan has found a way to nearly double the efficiency of a particular class of them that's made with organic semiconductors.

Fuente : http://www.eurekalert.org/pub_releases/2013-05/uom...