Advanced Materials

Graphene: Surface Acoustic Wave Driven Light Shutters Using Polymer-Dispersed Liquid Crystals (Adv. Mater. 14/2011)

Authors

  • Yan Jun Liu,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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  • Xiaoyun Ding,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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  • Sz-Chin Steven Lin,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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  • Jinjie Shi,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
    2. The DOW Chemical Company, Spring House Technology Center, Spring House, PA 19477, USA
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  • I-Kao Chiang,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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  • Tony Jun Huang

    Corresponding author
    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
    • Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA.
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Abstract

The cover shows a surface acoustic-wave driven light shutter formed from a polymer-dispersed liquid crystal (PDLC) film. In regions without surface acoustic waves (SAWs) the LC molecules in the droplets show a radial alignment, while within the SAW working region, the LC molecules show an alignment perpendicular to the substrate. With further optimization, this PDLC-based light shutter, reported on p. 1656 by Tony Jun Huang and co-workers, could possess advantages such as low power consumption, high throughput, and excellent optical properties.

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