Selective Cold Welding of Colloidal Gold Nanorods

Authors

  • Simona C. Laza,

    Corresponding author
    • Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moléculaire, UMR 8537 – CNRS Ecole Normale Supérieure du Cachan Grande Voie des Vignes, France
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  • Nicolas Sanson,

    Corresponding author
    1. Physicochimie des Polymères et Milieux Dispersés-Sciences et Ingénierie de la Matière Molle, UMR7615, UPMC Sorbonne Universités, Paris cedex 05, France
    • Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moléculaire, UMR 8537 – CNRS Ecole Normale Supérieure du Cachan Grande Voie des Vignes, France
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  • Cécile Sicard-Roselli,

    1. Laboratoire de Chimie Physique, CNRS UMR 8000, Université Paris-Sud,, Orsay cedex, France
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  • Anthony Aghedu,

    1. Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moléculaire, UMR 8537 – CNRS Ecole Normale Supérieure du Cachan Grande Voie des Vignes, France
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  • Bruno Palpant

    1. Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moléculaire, UMR 8537 – CNRS Ecole Normale Supérieure du Cachan Grande Voie des Vignes, France
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E-mail: simona-cristina.laza@ecp.fr, nicolas.sanson@espci.fr

Abstract

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A new cold nanowelding technique for cetyltrimethylammonium bromide (CTAB)-stabilized colloidal nanorods in water is reported. This technique leads to the formation of micrometric nanowires by end-to-end self-organization and welding of nanorods. This cold welding strategy could be generally applicable to colloidal nanoparticles and opens new outlooks for the bottom-up fabrication of nanodevices using colloidal building blocks.

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