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The world's most efficient silicon solar cells have been developed by the Australian scientists. The scientist team led by Martin Green and Stuart Wenham has come up with 25 percent of solar cell efficiency. According to Martin Green, the new world mark in converting sunlight into electricity is one of the great achievements of The University of New South Wales (UNSW). UNSW's world-leading silicon cell is now six percent more efficient than the next-best technology, claimed Green.
Martin Green stated that credit of such an achievement entirely goes to new knowledge about the composition of sunlight. As per Green, since the weights of the colours in sunlight change during the day, solar cells are measured under a standard colour spectrum defined under typical operational meteorological condition. Improvements in understanding atmospheric effects upon the colour content of sunlight led to a revision of the standard spectrum in April. This revision has led to the development of solar cells having 25 per cent efficiency.
