Enhancing the Efficiency of Thermophotovoltaics with Photon Recycling

T. Patrick Xiao; Gregg Scranton; Vidya Ganapati; J. F. Holzrichter; Per F. Peterson; Eli Yablonovitch

doi:10.1364/cleo_at.2016.atu1k.2

Abstract

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We show that photon recycling utilizing the spectral selectivity of the photovoltaic band edge enables 48% thermophotovoltaic heat-to-electricity conversion efficiency at 1200°C with In0.47Ga0.53As cells, and present experimental methods to demonstrate this concept.

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