Solar-thermal conversion member, solar-thermal conversion device, and solar thermal power generation device comprising a β-FeSi2 phase material
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United States of America Patent
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Jan 17, 2017
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app pub date -
Nov 9, 2012
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Nov 14, 2011
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Abstract
A solar-thermal conversion member includes a β-FeSi2 phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and, as a consequence, efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred ° C. The solar-thermal conversion member may therefore efficiently absorb sunlight, provide heat, and prevent thermal radiation due to thermal emission.
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