Liquid-Crystal Polymers: Topography from Topology: Photoinduced Surface Features Generated in Liquid Crystal Polymer Networks (Adv. Mater. 41/2013)

Authors

  • Michael E. McConney,

    1. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, USA
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  • Angel Martinez,

    1. Department of Physics, Liquid Crystal Materials Research Center, Department of Electrical, Computer and Energy Engineering and Materials Science Engineering Program, University of Colorado, Boulder Colorado, 80309, USA, Renewable and Sustainable Energy Institute, National Renewable Energy Laboratory and University of Colorado, Boulder, Colorado, USA
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  • Vincent P. Tondiglia,

    1. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, USA
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  • Kyung Min Lee,

    1. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, USA
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  • Derrick Langley,

    1. Air Force Institute of Technology, Department of Electrical and Computer Engineering, WPAFB, OH, USA
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  • Ivan I. Smalyukh,

    1. Department of Physics, Liquid Crystal Materials Research Center, Department of Electrical, Computer and Energy Engineering and Materials Science Engineering Program, University of Colorado, Boulder Colorado, 80309, USA, Renewable and Sustainable Energy Institute, National Renewable Energy Laboratory and University of Colorado, Boulder, Colorado, USA
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  • Timothy J. White

    Corresponding author
    1. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, USA
    • Air Force Research Laboratory, Materials and Manufacturing Directorate, 3005 Hobson Way, WPAFB OH 45434 USA

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Abstract

image

Light can induce rich and diverse topographical transformations of initially flat films composed of photoresponsive, azobenzene-functionalized liquid-crystalline polymer networks. The N-fold symmetry of the topography of the photoinduced response of defect-containing azo-LCN films is examined by T. J. White and co-workers on page 5880. It is found to be inherently coupled to the strength of the defect, confirming that the director profile emanating from the topological defect governs the behavior. The topography of a film subsumed with a +10 defect resting on water after exposure to light is shown here.

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