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Issue 4, 2004
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Evidence of an aggregative mechanism during the formation of silver nanowires in N,N-dimethylformamide

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Abstract

A detailed high-resolution electron microscopy study of the formation of Ag nanowires by solvent reduction in N,N-dimethylformamide (DMF), in the presence of poly(vinylpyrrolidone) (PVP) at high temperature provided clear evidence that the nanowires grow through the oriented aggregation of precursor nanoparticles. The HRTEM images demonstrate that initially, icosahedral and cuboctahedral Ag nanoparticles are formed, which then self-assemble to form aligned stripes, and eventually fuse with each other to yield single crystalline nanowires. The nanoparticle aggregation only takes place through preferred facets of the original nanocrystals, and therefore intermediate twisted wires are observed.

Graphical abstract: Evidence of an aggregative mechanism during the formation of silver nanowires in N,N-dimethylformamide

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Publication details

The article was received on 18 Sep 2003, accepted on 20 Oct 2003 and first published on 03 Nov 2003


Article type: Paper
DOI: 10.1039/B311454F
Citation: J. Mater. Chem., 2004,14, 607-610

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    Evidence of an aggregative mechanism during the formation of silver nanowires in N,N-dimethylformamide

    M. Giersig, I. Pastoriza-Santos and L. M. Liz-Marzán, J. Mater. Chem., 2004, 14, 607
    DOI: 10.1039/B311454F

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