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Title: Adaptable Ultraviolet Reflecting Polymeric Multilayer Coatings of High Refractive Index Contrast
Authors: Smirnov, José Raúl Castro
Ito, Masateru  kyouindb  KAKEN_id
Calvo, Mauricio Ernesto
López-López, Carmen
Jiménez-Solano, Alberto
Galisteo-López, Juan Francisco
Zavala-Rivera, Paul
Tanaka, Koichiro  kyouindb  KAKEN_id
Sivaniah, Easan  kyouindb  KAKEN_id  orcid (unconfirmed)
Míguez, Hernán
Author's alias: 田中, 耕一郎
伊藤, 真陽
Keywords: Block copolymers
Collective osmotic shock
Photonic crystals
Porous multilayers
UV lithography
Issue Date: 1-Nov-2015
Publisher: Wiley-VCH Verlag
Journal title: Advanced Optical Materials
Volume: 3
Start page: 1633
End page: 1639
Abstract: A synthetic route is demonstrated to build purely polymeric nanostructured multilayer coatings, adaptable to arbitrary surfaces, and capable of efficiently blocking by reflection a targeted and tunable ultraviolet (UV) range. Reflection properties are determined by optical interference between UV light beams reflected at the interfaces between polystyrene layers of different porosity and hence refractive index. As no dopant absorber intervenes in the shielding effect, polymer degradation effects are prevented. Alternated porosity results from the modulation of photochemical effects at the few tens of nanometers length scale, combined with the collective osmotic shock induced during the processing of the precursor diblock copolymer film. Experimental evidence of the application of this method to coat rough surfaces with smooth and conformal UV protecting films is provided.
Rights: © 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
DOI(Published Version): 10.1002/adom.201500209
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