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Published on: August 26, 2013
Sol-Gel Processing of MgF₂ Antireflective Coatings
1Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, 97082 Würzburg, Germany. peer.loebmann@isc.fraunhofer.de.
Abstract:
There are different approaches for the preparation of porous antireflective λ/4 MgF₂ films from liquid precursors. Among these, the non-aqueous fluorolytic synthesis of precursor solutions offers many advantages in terms of processing simplicity and scalability. In this paper, the structural features and optical performance of the resulting films are highlighted, and their specific interactions with different inorganic substrates are discussed. Due to their excellent abrasion resistance, coatings have a high potential for applications on glass. Using solvothermal treatment of precursor solutions, also the processing of thermally sensitive polymer substrates becomes feasible.
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