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Organic small molecule-based optical coatings

: Schulz, U.; Präfke, C.; Munzert, P.; Kaiser, N.


Lequime, M. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Advances in Optical Thin Films IV : SPIE Optical System Design 2011, 5.-8.9.2011, Marseille, France
Bellingham, WA: SPIE, 2011 (Proceedings of SPIE 8168)
ISBN: 978-0-8194-8794-0
Paper 81680Q
Conference "Advances in Optical Thin Films" <4, 2011, Marseille>
Conference Paper
Fraunhofer IOF ()
organic layer; plasma etching; antireflection; optical coating; nanostructure

A small molecule is a low molecular weight organic compound which is by definition not a polymer. Therefore, physical vapor deposition by evaporation as common for inorganic oxides is often possible. Organic layers can be useful as components of interference stacks for different functions. A number of organic compounds have interesting UV absorption characteristics and can be used to protect UV-sensitive polymers such as polycarbonate. In addition, organic layers can be applied to generate nanostructured thin films with a very low effective refractive index, as shown recently for polymers. A structured organic single layer can be applied as an antireflective (AR) coating for a glass lens. The applicability of several small molecule compounds will be discussed in this paper.