Real-Time Optofluidic Synthesis of Magnetochromatic Microspheres for Reversible Structural Color Patterning

Authors

  • Junhoi Kim,

    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
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  • Younghoon Song,

    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
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  • Le He,

    1. Department of Chemistry, University of California, Riverside, Riverside, CA 92521, USA
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  • Hyoki Kim,

    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
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  • Howon Lee,

    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
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  • Wook Park,

    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
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  • Yadong Yin,

    1. Department of Chemistry, University of California, Riverside, Riverside, CA 92521, USA
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  • Sunghoon Kwon

    Corresponding author
    1. School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea
    2. Inter-university Semiconductor Research Center, Seoul National University Seoul, 151-742, Korea
    • School of Electrical Engineering and Computer Science, Seoul National University, Seoul, 151-744, Korea.
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Abstract

original image

Dynamic synthesis of magnetoresponsive structural-colored microspheres is demonstrated by combining an optofluidic approach with a magnetic property tuning method. The strategy allows for the synthesis of magnetochromatic microspheres with controlled and heterogeneous optical properties in a single synthesis environment. Orientation-dependent color diffraction of the magnetochromatic microspheres is utilized to form structural color patterns using a patterned magnet.

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