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Thermophotovoltaic energy conversion using photonic bandgap selective emitters

United States Patent

June 24, 2003
View the Complete Patent at the US Patent & Trademark Office
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A method for thermophotovoltaic generation of electricity comprises heating a metallic photonic crystal to provide selective emission of radiation that is matched to the peak spectral response of a photovoltaic cell that converts the radiation to electricity. The use of a refractory metal, such as tungsten, for the photonic crystal enables high temperature operation for high radiant flux and high dielectric contrast for a full 3D photonic bandgap, preferable for efficient thermophotovoltaic energy conversion.
Gee; James M. (Albuquerque, NM), Lin; Shawn-Yu (Albuquerque, NM), Fleming; James G. (Albuquerque, NM), Moreno; James B. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/ 114,820
April 3, 2002
This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U. S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.