A collaboration between the U.S. National Renewable Energy Laboratory and Australia's University of New South Wales has yielded a new efficiency record of 32.9% for a tandem cell device utilizing III-V materials. Key to the achievement was a new technique enabling the researchers to take advantage of "quantum wells" in the material that serve to trap charges and enable tuning of the cell bandgap to absorb more of the light spectrum.Solar cells manufactured from gallium arsenide (GaAs) and gallium indium phosphide (GaInP) have long yielded some of the highest conversion efficiencies of any technology, ...Den vollständigen Artikel lesen ...