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Limiting efficiency of silicon solar cells

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4 Author(s)
Tiedje, T. ; Exxon Research and Engineering Co., Annandale, NJ ; Yablonovitch, E. ; Cody, G.D. ; Brooks, B.G.

The detailed balance method for calculating the radiative recombination limit to the performance of solar cells has been extended to include free carrier absorption and Auger recombination in addition to radiative losses. This method has been applied to crystalline silicon solar cells where the limiting efficiency is found to be 29.8 percent under AM1.5, based on the measured optical absorption spectrum and published values of the Auger and free carrier absorption coefficients. The silicon is assumed to be textured for maximum benefit from light-trapping effects.

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Electron Devices, IEEE Transactions on  (Volume:31 ,  Issue: 5 )