Doubling the Power Output of Bifacial Thin‐Film GaAs Solar Cells by Embedding Them in Luminescent Waveguides

Abstract

Thin-film, microscale GaAs solar cells transfer printed into luminescent concentrating waveguides show significantly enhanced power output compared to cells evaluated in isolation. Experimental and numerical simulation results demonstrate that optimized configurations involve a free-standing waveguide and a diffuse backside reflector, as a way to maximize capture of both waveguided and scattered photons. Such unusual options in engineering design suggest promising additional avenues for the use of luminescent concentration in advanced photovoltaics. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.