A material that emits less energy than it absorbs has the potential to save some of the sunlight wasted by solar collectors.

Researchers at the Niels Bohr Institute, University of Copenhagen, have developed a tunable system that paves the way for ...

New results published in the journal Physical Review Letters detail how a specially designed metamaterial was able to tip the ...

It is possible to make a material emit more radiation than it absorbs, violating the laws of physics in a way that could make energy-harvesting devices more efficient ...

A new material developed at Penn State defies a fundamental law of physics, opening doors to highly efficient solar cells.