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Limiting photovoltaic efficiency under new ASTM International G173-based reference spectra


Martin A. Green, ARC Photovoltaics Centre of Excellence, University of New South Wales (UNSW), Sydney 2052, Australia.



Efficiency limits upon photovoltaic energy conversion are re-evaluated under the new ASTM International G173-based reference spectra. Peak terrestrial efficiency for a single-junction device increases to 33.8% under the new air mass 1.5G spectrum, whereas overall and time-symmetric limits increase to 74.0% and 68.0%, respectively. Copyright © 2011 John Wiley & Sons, Ltd.