SPECTRALLY SELECTIVE EMITTER AND DESIGN METHOD THEREOF
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United States of America Patent
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Oct 19, 2023
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Apr 20, 2021
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Mar 19, 2021
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The present invention relates to a spectrally selective emitter and a design method thereof. The designed emitter has a one-dimensional layered structure, including a first layer, a second layer and a third layer arranged in sequence, wherein both the first and third layers are hafnium oxide layers, and the second layer is a hafnium oxide layer with multiple erbium oxide nanoparticles distributed. The designed emitter is a material-type emitter with spectrally selective emittance. Compared with the traditional structure-type emitter, the material-type emitter has high thermal stability and oxidation resistance, which can fundamentally solve the high-temperature degradation problem. The invention has the characteristics of accuracy and high efficiency, and can comprehensively reveal the variation rule of the spectral emittance of the material-type hafnium oxide selective emitter doped with erbium oxide nanoparticles and the doping amount and nanoparticles size, which can laying a foundation for the practical application of high-temperature selective emitter.
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