Improving InAs nanotree growth with composition-controlled Au-In nanoparticles

Kimberly A. Dick, Z. Geretovszky, Anders Mikkelsen, Lisa S. Karlsson, Edvin Lundgren, Jan Olle Malm, Jesper N. Andersen, Lars Samuelson, Werner Seifert, Brent A. Wacaser, Knut Deppert

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Au nanoparticles are commonly used as seeds for epitaxial growth of III-V semiconductor nanowires. However, the interaction between Au and In-containing III-V materials makes it difficult to control the growth of more complex nanowire structures in materials such as InAs. Here we report the growth of InAs nanowires and branched nanotrees using Au and Au-In nanoparticles. We show that the initial composition of the particle does not affect the morphology of the first-generation nanowires, nor does it affect the final composition of the particle after growth. However, when the Au-In particles were used to seed a second generation of nanowires, producing nanotrees, the branches exhibited a 2-3 times higher growth rate and more regular shape than those seeded by pure Au particles. This result is attributed to the decreased interaction between the seed particle and the trunk nanowires when Au-In particles are used. Thus the incorporation of In into the seed particle during particle production allows for modification of the particle-wire interaction.

Original languageEnglish
Pages (from-to)1344-1350
Number of pages7
JournalNanotechnology
Volume17
Issue number5
DOIs
Publication statusPublished - Mar 14 2006

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Nanowires
Nanoparticles
nanoparticles
nanowires
Seed
Chemical analysis
seeds
Beam plasma interactions
Epitaxial growth
indium arsenide
particle production
interactions
Wire
wire

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Dick, K. A., Geretovszky, Z., Mikkelsen, A., Karlsson, L. S., Lundgren, E., Malm, J. O., ... Deppert, K. (2006). Improving InAs nanotree growth with composition-controlled Au-In nanoparticles. Nanotechnology, 17(5), 1344-1350. https://doi.org/10.1088/0957-4484/17/5/029

Improving InAs nanotree growth with composition-controlled Au-In nanoparticles. / Dick, Kimberly A.; Geretovszky, Z.; Mikkelsen, Anders; Karlsson, Lisa S.; Lundgren, Edvin; Malm, Jan Olle; Andersen, Jesper N.; Samuelson, Lars; Seifert, Werner; Wacaser, Brent A.; Deppert, Knut.

In: Nanotechnology, Vol. 17, No. 5, 14.03.2006, p. 1344-1350.

Research output: Contribution to journalArticle

Dick, KA, Geretovszky, Z, Mikkelsen, A, Karlsson, LS, Lundgren, E, Malm, JO, Andersen, JN, Samuelson, L, Seifert, W, Wacaser, BA & Deppert, K 2006, 'Improving InAs nanotree growth with composition-controlled Au-In nanoparticles', Nanotechnology, vol. 17, no. 5, pp. 1344-1350. https://doi.org/10.1088/0957-4484/17/5/029
Dick, Kimberly A. ; Geretovszky, Z. ; Mikkelsen, Anders ; Karlsson, Lisa S. ; Lundgren, Edvin ; Malm, Jan Olle ; Andersen, Jesper N. ; Samuelson, Lars ; Seifert, Werner ; Wacaser, Brent A. ; Deppert, Knut. / Improving InAs nanotree growth with composition-controlled Au-In nanoparticles. In: Nanotechnology. 2006 ; Vol. 17, No. 5. pp. 1344-1350.
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