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End-to-End Assembly of Shape-Controlled Nanocrystals via a Nanowelding Approach Mediated by Gold Domains

Authors

  • Albert Figuerola,

    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
    2. Scuola Superiore ISUFI; University of Salento Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Isabella R. Franchini,

    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Angela Fiore,

    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
    2. Scuola Superiore ISUFI; University of Salento Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Rosanna Mastria,

    1. Scuola Superiore ISUFI; University of Salento Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Andrea Falqui,

    1. Italian Institute of Technology (IIT) Via Morego 30, I-16163 Genova (Italy)
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  • Giovanni Bertoni,

    1. Italian Institute of Technology (IIT) Via Morego 30, I-16163 Genova (Italy)
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  • Sara Bals,

    1. EMAT, University of Antwerp Groenenborgerlaan 171, B-2020 Antwerp (Belgium)
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  • Gustaaf Van Tendeloo,

    1. EMAT, University of Antwerp Groenenborgerlaan 171, B-2020 Antwerp (Belgium)
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  • Stefan Kudera,

    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Roberto Cingolani,

    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
    2. Scuola Superiore ISUFI; University of Salento Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
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  • Liberato Manna

    Corresponding author
    1. National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy)
    • National Nanotechnology Laboratory of CNR-INFM, Unità di Ricerca IIT Distretto Tecnologico ISUFI, via per Arnesano km 5, I-73100 Lecce (Italy). Fax: (+39) 0832298237.
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  • This work was supported by the European project SA-NANO (Contract nr. STRP 013698) and ESTEEM (Contract nr. 026019), and by the Italian Ministry of Research (under contract nr. RBLA03ER38 and FAR-DM18604). S.B. and G.B. are grateful to the Fund for Scientific Research-Flanders. We would like to thank Dr. S. Shankar for many inspiring discussions. A.F. and I.R.F. have contributed equally to this work. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

Welding nanocrystals for assembly: The welding of Au domains grown on the tips of shape-controlled cadmium chalcogenide colloidal nanocrystals is used as a strategy for their assembly. Iodine-induced coagulation of selectively grown Au domains leads to assemblies such as flowerlike structures based on bullet-shaped nanocrystals, linear and cross-linked chains of nanorods, and globular networks with tetrapods as building blocks.

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