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A Directional Entropic Force Approach to Assemble Anisotropic Nanoparticles into Superlattices

Authors

  • Dr. Kaylie L. Young,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)
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  • Dr. Michelle L. Personick,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)
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  • Dr. Michael Engel,

    1. Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)
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  • Pablo F. Damasceno,

    1. Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)
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  • Stacey N. Barnaby,

    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)
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  • Dr. Reiner Bleher,

    1. Department of Materials Science and Engineering, Northwestern University, 2200 Campus Drive, Evanston, IL 60208 (USA)
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  • Dr. Tao Li,

    1. X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (USA)
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  • Prof. Sharon C. Glotzer,

    Corresponding author
    1. Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)
    • Sharon C. Glotzer, Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)

      Byeongdu Lee, X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (USA)

      Chad A. Mirkin, Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)

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  • Dr. Byeongdu Lee,

    Corresponding author
    1. X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (USA)
    • Sharon C. Glotzer, Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)

      Byeongdu Lee, X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (USA)

      Chad A. Mirkin, Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)

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  • Prof. Chad A. Mirkin

    Corresponding author
    1. Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)
    2. Department of Materials Science and Engineering, Northwestern University, 2200 Campus Drive, Evanston, IL 60208 (USA)
    • Sharon C. Glotzer, Department of Chemical Engineering, Department of Materials Science & Engineering, Applied Physics Program, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109 (USA)

      Byeongdu Lee, X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (USA)

      Chad A. Mirkin, Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (USA)

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  • C.A.M. and S.C.G. acknowledge the Department of Energy Office (DOE Award DE-SC0000989) for support through the Northwestern University Non-Equilibrium Energy Research Center. K.L.Y., M.L.P., and S.N.B. acknowledge support from the NSF through the Graduate Research Fellowship Program. K.L.Y. also acknowledges the NDSEG Fellowship. P.F.D, M.E., and S.C.G. acknowledge support from the U.S. Army Research Office under Grant Award No. W911NF-10-1-0518 and the U.S. Department of Defense ASD (R&E) under Award No. N00244-09-1-0062. Use of the Advanced Photon Source was supported by the Office of Basic Energy Sciences, US DOE under Contract DE-AC02-06CH11357. Electron microscopy was carried out in the Electron Probe Instrumentation Center facility of the Northwestern University Atomic and Nanoscale Characterization Experimental Center.

Abstract

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Haften ohne zu berühren: Ein Ansatz mit gerichteten entropischen Kräften (DEFA) nutzt Micellen aus kationischen Tensiden zum Aufbau von Übergittern aus anisotropen Nanopartikeln in Lösung. Die Micellen induzieren eine Seite-auf-Seite-Stapelung der Nanopartikel, um die Entropie des Systems zu maximieren. Die Symmetrie des Übergitters wird durch die Nanopartikelform, der Partikelabstand durch das geladene Tensid bestimmt.

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