Diameter-controlled synthesis of single-crystal silicon nanowires

Yi Cui*, Lincoln J. Lauhon, Mark S. Gudiksen, Jianfang Wang, Charles M. Lieber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1033 Scopus citations

Abstract

Monodisperse silicon nanowires were synthesized by exploiting well-defined gold nanoclusters as catalysts for one-dimensional growth via a vapor-liquid-solid mechanism. Transmission electron microscopy studies of the materials grown from 5, 10, 20, and 30 nm nanocluster catalysts showed that the nanowires had mean diameters of 6, 12, 20, and 31 nm, respectively, and were thus well defined by the nanocluster sizes. High-resolution transmission electron microscopy demonstrated that the nanowires have single-crystal silicon cores sheathed with 1-3 nm of amorphous oxide and that the cores remain highly crystalline for diameters as small as 2 nm.

Original languageEnglish (US)
Pages (from-to)2214-2216
Number of pages3
JournalApplied Physics Letters
Volume78
Issue number15
DOIs
StatePublished - Apr 9 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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