Solar selective absorbing coating



The invention relates to the technical field of solar energy and discloses a solar selective absorbing coating. The solar selective absorbing coating comprises a metallic reflective layer and a semiconductor absorption layer formed on the metallic reflective layer, wherein the metallic reflective layer is prepared from Al, and the semiconductor absorption layer is prepared from Ge. According to the solar selective absorbing coating, the advantage that a Ge semiconductor is steep in energy band cutoff and has little adverse effect on the low infrared emissivity of metal Al is effectively exerted, so that a solar-system heat collector can absorb solar spectra to the maximum and effectively inhibit infrared radiation, and the limitations to the high-temperature application of the traditional selective absorbing coatings are broken through.




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    CN-105506554-AApril 20, 2016电子科技大学一种可见光/红外波段纳米光学吸收涂层及其制备方法