May 25, 2016

AND CHEAPER...:

A NEW SOLAR CELL CONVERTS THE SUN'S HEAT INTO USABLE ENERGY (Mary Beth Griggs  5/25/16, Popular Science)

In a paper published this week in Nature Energy researchers describe building a working solar thermophotovoltaic device, or STPV. The STPV solar cell has a layer that absorbs heat and light from sunlight and reflects it back out as light, which is then captured by a nearby solar cell and turned into power. The light emitted by the device is calibrated to be the perfect wavelength for the solar cell, making it function at peak efficiency. Normally, a solar cell or photovoltaic device just convert light into electricity without going through the intermediate step with heat.

Heat is energy that is constantly wasted, just dispersing out into the world. Researchers around the world have been looking into developing new materials and methods that can harness the wasted energy and put it to work. Theoretically, this new method could double the amount of power produced by a given area of solar panels...

Posted by at May 25, 2016 8:12 PM

  

« BILL'S 7TH TERM...: | Main | YOU MEAN BESIDES TRYING TO KILL THE KID?: »