A highly reflective rear mirror can increase the efficiency of thermophotovoltaics through regeneration of unused photons. Based on this concept, we recently demonstrated a record 29.1% thermophotovoltaic device efficiency. We have also identified the challenges as we aim towards 50% thermophotovoltaic efficiency.
Zunaid Omair, Gregg Scranton, Luis Pazos, T. Patrick Xiao, Myles A. Steiner, Vidya Ganapati, Per F. Peterson, J. F. Holzrichter, Harry A. Atwater, Eli Yablonovitch
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