Optical Alignment and Patterning of Nanoscale Microdomains in a Block Copolymer Thin Film

Optical Alignment and Patterning of Nanoscale Microdomains in a Block Copolymer Thin Film

Optical 3D alignment of nanocylinders has been successfully attained for thin films of a block copolymer (see figure) comprising azobenzene‐containing liquid‐crystalline polymers and poly(ethylene oxide) via photoinduced massive migration. The out‐of‐plane and in‐plane alignments are achieved by con...

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Veröffentlicht in:Advanced materials (Weinheim) 2006-04, Vol.18 (7), p.883-886
Hauptverfasser: Morikawa, Y., Nagano, S., Watanabe, K., Kamata, K., Iyoda, T., Seki, T.
Format: Artikel
Sprache:eng
Schlagworte:
Alignment
Azobenzenes
Block copolymers
Holography
Liquid crystals
Liquid crystals, smectic
Patterning
Patterning, polymers
polymer
polymers
smectic
Thin films
Thin films, polymer
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Beschreibung
Zusammenfassung:Optical 3D alignment of nanocylinders has been successfully attained for thin films of a block copolymer (see figure) comprising azobenzene‐containing liquid‐crystalline polymers and poly(ethylene oxide) via photoinduced massive migration. The out‐of‐plane and in‐plane alignments are achieved by controlling the film thickness and selection of linear polarization direction upon illumination, respectively.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200502573