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Selective emission multilayer coatings for a molybdenum thermophotovoltaic radiator

United States Patent

January 27, 2004
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Multilayer coating designs have been developed to provide selective emission for a molybdenum thermophotovoltaic (TPV) radiator surface. These coatings increase the surface emissivity of a molybdenum TPV radiator substrate in the wavelength range that matches the bandgap of the TPV cells to increase the power density of the TPV system. Radiator emission at wavelengths greater than the bandgap energy of the TPV cells is greatly reduced through the use of these coatings, which significantly increases the efficiency of the TPV system. The use of this coating greatly improves the performance of a TPV system, and the coating can be tailored to match the bandgap of any practical TPV system.
Cockeram; Brian Vern (North Huntingdon, PA)
The United States of America as represented by the United States Department of Energy (Washington, DC)
10/ 162,611
June 6, 2002
The United States Government has rights in this invention pursuant to a contract awarded by the U.S. Department of Energy.