Vacuum-deposited polymer/silver reflector material

John D. Affinito; Peter M. Martin; Mark E. Gross; Wendy D. Bennett

doi:10.1117/12.185799

7 September 1994 Vacuum-deposited polymer/silver reflector material

John D. Affinito, Peter M. Martin, Mark E. Gross, Wendy D. Bennett

Proceedings Volume 2262, Optical Thin Films IV: New Developments; (1994) https://doi.org/10.1117/12.185799
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Weatherable, low cost, front surface, solar reflectors on flexible substrates would be highly desirable for lamination to solar concentrator panels. The method to be described in this paper may permit such reflector material to be fabricated for less the 50$CNT per square foot. Vacuum deposited Polymer/Silver/Polymer reflectors and Fabry-Perot interference filters were fabricated in a vacuum web coating operation on polyester substrates. Reflectivities were measured in the wavelength range from .4 micrometers to .8 micrometers . It is hoped that a low cost substrate can be used with the substrate laminated to the concentrator and the weatherable acrylic polymer coating facing the sun. This technique should be capable of deposition line speeds approaching 1500 linear feet/minute². Central to this technique is a new vacuum deposition process for the high rate deposition of polymer films. This polymer process involves the flash evaporation of an acrylic monomer onto a moving substrate. The monomer is subsequently cured by an electron beam or ultraviolet light. This high speed polymer film deposition process has been named the PML process- for Polymer Multi- Layer.

Citation Download Citation

John D. Affinito, Peter M. Martin, Mark E. Gross, and Wendy D. Bennett "Vacuum-deposited polymer/silver reflector material", Proc. SPIE 2262, Optical Thin Films IV: New Developments, (7 September 1994); https://doi.org/10.1117/12.185799

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