Spectrally selective solar absorbers

Details Spectrally selective solar absorbers Spectrally selective solar absorbers

1976-08-11

1978-07-04

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

126270, 126271, 204192P, 428432, 428450, 428469, 428632, 428633, 428661, 428926, B32B 1504, F24J 302

Patent

active

040989569

ABSTRACT:
Thin film absorber stacks consisting of an absorptive film of titanium, zirconium or hafnium suboxide, subcarbide or subnitride superposed on a reflective film of silver, aluminum or copper display spectrally selective characteristics. The absorptive film may be prepared by reactively sputtering the metal or the metal carbide in argon or other inert gas with small amounts of gas containing carbon, oxygen or nitrogen or their combinations, or by reaction of the metal film in air or other gas.

REFERENCES:
patent: 3650737 (1972-03-01), Maissel et al.
patent: 3920413 (1975-11-01), Lowery
patent: 3953178 (1976-04-01), Engel
patent: 3978272 (1976-08-01), Donley
"Transparent Heat-Mirror Films of TiO.sub.2 /Ag/TiO.sub.2 for Solar Energy Collection and Radiation Insulation"; Fam et al., App. Phys. Lett., vol. 25, No. 12, 12/74, pp. 693-695.
"Sputtered Metal Carbide Solar-Selective Absorbing Surfaces"; Harding, J. Voc. Sci. Tech., vol. 13, No. 5, 9-10 1976, pp. 1070-1072.

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