Behind Record-Breaking Solar Cell Efficiencies

What's Behind Record-Breaking Solar Cell Efficiencies, Part 1
In this two-part series on solar cell efficiencies, we examine laboratory and commercial solar cell efficiencies of Crystalline Silicon, CIGs, Amorphous, Cadmium Telluride and Multijunction Concentrator cells.

California, USA -- In solar, it's hard to go a month without hearing news about conversion efficiencies. In September, for example, Oerlikon Solar and its partner, Corning, said they broke the world efficiency record for a lab-created tandem-junction amorphous-silicon cell. The cell, which was tested by the U.S. National Renewable Energy Laboratory, delivered 11.9 percent stabilized efficiency.

Meanwhile, Conergy said its new selective-emitter technology could boost solar-cell efficiency from one of its German factories by "up to 0.5 percentage points." And scientists at Yonsei University and the Massachusetts Institute of Technology announced new technologies that could one day enhance cell efficiencies by up to 65 percent, in the case of Yonsei, and that could double cell efficiencies, in the case of MIT.

"Everyone's working on efficiency," said Paul Wormser, senior director of product engineering and system solutions at Sharp Electronics' solar division. "You would be hard pressed to find a manufacturer that hasn't stated publicly at least once a year something about an efficiency improvement program."Full article

Labels: CIGS, Polysilicon, solar efficiency, Solar Energy, solar panels

posted by Ertai at 10:34 AM