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Solar Cells as Light Emitters: The Key to Record Efficiencies and Approaching the Shockley-Queisser Limits

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Abstract

A solar cell, by definition absorbing, must also be emissive. Counter-intuitively, then, emission should be maximized. This was the viewpoint driving the recent single-junction efficiency record, and underpins the approach to more general Shockley-Queisser limits.

© 2013 Optical Society of America

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