New approach to III-V tandems sets 32.9% efficiency record
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.
Toyota shows off solar Prius with 860 W output from 34% efficient cells
The car will be road tested at Toyota City in Japan. Solar charging technology for the vehicle will then be further optimized before the vehicle goes on sale.
