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25 November 1992 Regular and random surface microstructures as antireflection coatings for solar absorbers
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Abstract
Broadband antireflection coatings can be made from multi-layer stacks or by microstructuring the surface. One approach for microstructuring is to prepare random rough surfaces by sputtering or evaporation technology. A second is the production of periodic holographic double gratings, so-called `moth eyes' with spatial periods of less than 1 micrometers . The effect of these two possibilities on the solar absorptance is demonstrated by the example of cermet solar absorber coatings.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Borne, Andreas Gombert, Wolfgang Graf, Michael Koehl, and Volker Wittwer "Regular and random surface microstructures as antireflection coatings for solar absorbers", Proc. SPIE 1727, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Selective Materials, Concentrators and Reflectors, Transparent Insulation and Superwindows, (25 November 1992); https://doi.org/10.1117/12.130508
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