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

Dick Thelander, Kimberly LU ; Geretovszky, Zsolt; Mikkelsen, Anders LU ; Karlsson, Lisa LU ; Lundgren, Edvin LU ; Malm, Jan-Olle LU ; Andersen, Jesper N LU ; Samuelson, Lars LU ; Seifert, Werner LU and Wacaser, Brent LU , et al. (2006) In Nanotechnology 17(5). p.1344-1350
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... (More)
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. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
in
Nanotechnology
volume
17
issue
5
pages
1344 - 1350
publisher
IOP Publishing
external identifiers
  • wos:000236496400037
  • scopus:33144463385
ISSN
0957-4484
DOI
10.1088/0957-4484/17/5/029
language
English
LU publication?
yes
id
db2f9c43-e865-466c-b77f-f9ed3a30fa49 (old id 414329)
date added to LUP
2007-10-02 13:21:25
date last changed
2019-03-08 03:30:25
@article{db2f9c43-e865-466c-b77f-f9ed3a30fa49,
  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.},
  author       = {Dick Thelander, Kimberly and Geretovszky, Zsolt and Mikkelsen, Anders and Karlsson, Lisa and Lundgren, Edvin and Malm, Jan-Olle and Andersen, Jesper N and Samuelson, Lars and Seifert, Werner and Wacaser, Brent and Deppert, Knut},
  issn         = {0957-4484},
  language     = {eng},
  number       = {5},
  pages        = {1344--1350},
  publisher    = {IOP Publishing},
  series       = {Nanotechnology},
  title        = {Improving InAs nanotree growth with composition-controlled Au-In nanoparticles},
  url          = {http://dx.doi.org/10.1088/0957-4484/17/5/029},
  volume       = {17},
  year         = {2006},
}