Directing Colloidal Self-Assembly with Biaxial Electric Fields

Authors

  • Mirjam E. Leunissen,

    Corresponding author
    1. Soft Condensed Matter Debye Institute for Nanomaterials Science Utrecht University Princetonplein 1, 3584 CC, Utrecht (The Netherlands)
    2. Present address: Center for Soft Matter Research, New York University, 4 Washington Place, New York, NY 10003 (USA)
    • Soft Condensed Matter Debye Institute for Nanomaterials Science Utrecht University Princetonplein 1, 3584 CC, Utrecht (The Netherlands).
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  • Hanumantha Rao Vutukuri,

    1. Soft Condensed Matter Debye Institute for Nanomaterials Science Utrecht University Princetonplein 1, 3584 CC, Utrecht (The Netherlands)
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  • Alfons van Blaaderen

    Corresponding author
    1. Soft Condensed Matter Debye Institute for Nanomaterials Science Utrecht University Princetonplein 1, 3584 CC, Utrecht (The Netherlands)
    • Soft Condensed Matter Debye Institute for Nanomaterials Science Utrecht University Princetonplein 1, 3584 CC, Utrecht (The Netherlands).
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Abstract

original image

Hexagonal sheets of colloidal particles self-assemble in a biaxial electric field and can be made permanent by thermal annealing. One can also rapidly switch the suspension structure from isotropic, to 1D ‘strings’ and 2D ‘sheets’, which is useful for applications that require anisotropic suspension properties. Thus, multiaxial fields offer a flexible way to manipulate colloidal interactions and their self-assembled structures.

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