METAMATERIAL BASED EMITTERS FOR THERMOPHOTOVOLTAICS
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United States of America Patent
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Issued Date -
Mar 23, 2017
app pub date -
Nov 7, 2014
filing date -
Nov 7, 2013
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Abstract
A thermal emitter is provided, including a periodic structure operating as a metamaterial on an optically thick substrate; the periodic structure thermally emitting at high temperatures in a specified narrow wavelength of a predetermined resonance, the metamaterial including a composite medium of natural materials. The emitter may be part of a thermophotovoltaic device. The thermal emitter may include a plurality of layered films, wherein the distance between each adjacent film is substantially less than the wavelength.
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