THERMIONIC CONVERTER DEVICE
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United States of America Patent
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app pub date -
Sep 2, 2013
filing date -
Sep 3, 2012
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Abstract
Converter device for converting energy from electromagnetic radiation, in particular concentrated solar energy, in electrical power, comprising a thermionic emitter (2) and an absorber (1) of electromagnetic radiation, configured to transform electromagnetic radiation energy to thermal energy, having an outer surface (10) configured to be exposed to electromagnetic radiation and an inner surface integrally coupled to the thermionic emitter (2), the outer surface (10) being provided with a sub-micrometer periodic surface structure, the thermionic emitter (2) being monolithically integrated on said inner surface of the absorber (1), the absorber (1) being made of a material selected from the group comprising or consisting of carbide or aluminium nitride-based ceramic materials, and pyrolitic graphite, the thermionic emitter (2) being made of a material selected from the group comprising or consisting of thin film diamond deposited through chemical vapour deposition (CVD), thin film titanium nitride (TiN) or molybdenum silicide or di carbides or di borides-based ceramic materials, and refractory metals.
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