End-to-end assembly of shape-controlled nanocrystals via a nanowelding approach mediated by gold domains

Albert Figuerola; Isabella R. Franchini; Angela Fiore; Rosanna Mastria; Andrea Falqui; Giovanni Bertoni; Sara Bals; Custaaf Van Tendeloo; Stefan Kudera; Roberto Cingolani; Liberato Manna

doi:10.1002/adma.200801928

End-to-end assembly of shape-controlled nanocrystals via a nanowelding approach mediated by gold domains

Albert Figuerola^*, Isabella R. Franchini, Angela Fiore, Rosanna Mastria, Andrea Falqui, Giovanni Bertoni, Sara Bals, Custaaf Van Tendeloo, Stefan Kudera, Roberto Cingolani, Liberato Manna

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

113 Scopus citations

Abstract

A general and simple approach in a liquid solution for the end-to-end assembly of various shape-controlled semiconductor nanocrystals, such as bullets, rods, and tetrapods, through a nanowelding approach mediated by gold domains, was reported. The reaction of Au-tipped nanorods with I₂ leads to the formation of nanorod chains, in which the branching points are introduced wherever a Au domain is able to link more than two nanorod tips. On tetrapods, the welding of Au domains induce the organization of tetrapods into complex networks that could be extended up to several square micrometers. The reaction of Au-tipped nanocrystals with iodine is followed by a slight recovery of the original nanocrystal emission. The results show that the coalescence of the gold particles at the nanocrystal tips is the cause of nanocrystal assembly.

Original language	English (US)
Pages (from-to)	550-554
Number of pages	5
Journal	Advanced Materials
Volume	21
Issue number	5
DOIs	https://doi.org/10.1002/adma.200801928
State	Published - Feb 2 2009
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200801928

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title = "End-to-end assembly of shape-controlled nanocrystals via a nanowelding approach mediated by gold domains",

abstract = "A general and simple approach in a liquid solution for the end-to-end assembly of various shape-controlled semiconductor nanocrystals, such as bullets, rods, and tetrapods, through a nanowelding approach mediated by gold domains, was reported. The reaction of Au-tipped nanorods with I2 leads to the formation of nanorod chains, in which the branching points are introduced wherever a Au domain is able to link more than two nanorod tips. On tetrapods, the welding of Au domains induce the organization of tetrapods into complex networks that could be extended up to several square micrometers. The reaction of Au-tipped nanocrystals with iodine is followed by a slight recovery of the original nanocrystal emission. The results show that the coalescence of the gold particles at the nanocrystal tips is the cause of nanocrystal assembly.",

author = "Albert Figuerola and Franchini, {Isabella R.} and Angela Fiore and Rosanna Mastria and Andrea Falqui and Giovanni Bertoni and Sara Bals and {Van Tendeloo}, Custaaf and Stefan Kudera and Roberto Cingolani and Liberato Manna",

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T1 - End-to-end assembly of shape-controlled nanocrystals via a nanowelding approach mediated by gold domains

AU - Figuerola, Albert

AU - Franchini, Isabella R.

AU - Fiore, Angela

AU - Mastria, Rosanna

AU - Falqui, Andrea

AU - Bertoni, Giovanni

AU - Bals, Sara

AU - Van Tendeloo, Custaaf

AU - Kudera, Stefan

AU - Cingolani, Roberto

AU - Manna, Liberato

PY - 2009/2/2

Y1 - 2009/2/2

N2 - A general and simple approach in a liquid solution for the end-to-end assembly of various shape-controlled semiconductor nanocrystals, such as bullets, rods, and tetrapods, through a nanowelding approach mediated by gold domains, was reported. The reaction of Au-tipped nanorods with I2 leads to the formation of nanorod chains, in which the branching points are introduced wherever a Au domain is able to link more than two nanorod tips. On tetrapods, the welding of Au domains induce the organization of tetrapods into complex networks that could be extended up to several square micrometers. The reaction of Au-tipped nanocrystals with iodine is followed by a slight recovery of the original nanocrystal emission. The results show that the coalescence of the gold particles at the nanocrystal tips is the cause of nanocrystal assembly.

AB - A general and simple approach in a liquid solution for the end-to-end assembly of various shape-controlled semiconductor nanocrystals, such as bullets, rods, and tetrapods, through a nanowelding approach mediated by gold domains, was reported. The reaction of Au-tipped nanorods with I2 leads to the formation of nanorod chains, in which the branching points are introduced wherever a Au domain is able to link more than two nanorod tips. On tetrapods, the welding of Au domains induce the organization of tetrapods into complex networks that could be extended up to several square micrometers. The reaction of Au-tipped nanocrystals with iodine is followed by a slight recovery of the original nanocrystal emission. The results show that the coalescence of the gold particles at the nanocrystal tips is the cause of nanocrystal assembly.

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JO - Advanced Materials

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End-to-end assembly of shape-controlled nanocrystals via a nanowelding approach mediated by gold domains

Abstract

ASJC Scopus subject areas

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