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Antireflective coatings by sol-gel processing: Commercial products and future perspectives

 
: Löbmann, Peer

:

Journal of Sol-Gel Science and Technology 83 (2017), Nr.2, S.291-295
ISSN: 0928-0707
ISSN: 1573-4846
Englisch
Zeitschriftenaufsatz
Fraunhofer ISC ()
sol-gel; Beschichtung; Antireflexschicht

Abstract
Commercial antireflective coatings prepared by sol–gel processing are compared to MgF2 λ/4 thin films. Their respective optical performance is measured by UV-Vis spectroscopy. Microstructural features as characterized by Scanning Electron Microscopy are correlated to results determined by Ellipsometric Porosimetry. A modified Crockmeter testing procedure employing steel wool as abrasive was used to examine mechanical film stability. Results indicate that MgF2 films can well compete with other porous λ/4 systems, as well as with dense interference multilayer assemblies targeting at superior optical and mechanical properties.

: http://publica.fraunhofer.de/dokumente/N-445854.html