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Cost-Effective PbS-Al Selective Solar-Absorbing Panel

The PbS-Al solar panel absorbs 0.90 of the incident solar energy at sea level while having a 258°C blackbody emissivity of 0.038. This value can be achieved in a reproducible manner on aluminum-coated aluminum substrates with a single layer of PbS evaporated in standard vacuum to a thickness of 1100 Α.