Optical Alignment and Patterning of Nanoscale Microdomains in a Block Copolymer Thin Film
2006; Volume: 18; Issue: 7 Linguagem: Inglês
10.1002/adma.200502573
ISSN1521-4095
AutoresYuichi Morikawa, Shusaku Nagano, Kentaro Watanabe, Kaori Kamata, Tomokazu Iyoda, Takahiro Seki,
Tópico(s)Advanced Materials and Mechanics
ResumoOptical 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.
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