University of New South Wales (UNSW) researchers in the solar cell efficiency of another step in a few days ago they reported that 43% conversion efficiency of the new world record. The research team and the United States more than two teams demonstrate the performance of the battery combination, the efficiency of the establishment of a new benchmark.
Professor, Martin Green "Because solar energy by different composition of many colors, ranging from high-energy ultraviolet light to low-energy infrared light, as opposed to a single cell, different combinations of materials, solar cells more efficient conversion of sunlight," UNSW ARC Photovoltaic Center of Excellence, research director Martin Green said Professor.
Green and his colleagues Anita Ho-Baillie to lead R & D team has developed a silicon battery optimization technology, in the solar spectrum of the red and near-infrared side to capture sunlight. The battery capable of up to 46% of sunlight converted into electricity. When combined with four other batteries (from the National Renewable Energy Laboratory and the Emcore Corp. Joint development), each optimized for different solar spectrum band, the combination of the five batteries eventually be able to convert 43% of sunlight into electricity, will be The original world record of 0.3%. "Our R & D team of silicon cells is the key factor to reach a new record," Green said.
UNSW new record last year to create a single solar cell 25% of the world record can not be directly comparable, ARC Director of the Center, Professor Stuart Wenham said. "The latest record contains a combination of expensive batteries, and the collection of sunlight generated by the density is much higher than that of the standard tests sunlight intensity," he said. "However, it does show some of the final feasible solution."
Aug. 29, 2009
