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Height-controlled nanowire branches on nanotrees using a polymer mask

Dick Thelander, Kimberly LU ; Deppert, Knut LU ; Larsson, Magnus LU ; Seifert, Werner LU ; Wallenberg, Reine LU and Samuelson, Lars LU (2007) In Nanotechnology 18(3).
Abstract
The production of complex three-dimensional dendritic structures is an important step in the application of semiconductor nanowires. One promising method for achieving this is the sequential seeding of multiple generations of epitaxial nanowires using metal seed particles. However, it is difficult to control and predict the position of second and higher generation nanowires with respect to the first generation. Here we demonstrate a procedure for controlling the position of second-generation epitaxial nanowire branches on vertically aligned nanowire trunks. This method uses a spun-on polymer layer that masks first-generation wires to a specified height, preventing the growth of nanowire branches at lower positions as well as new nanowire... (More)
The production of complex three-dimensional dendritic structures is an important step in the application of semiconductor nanowires. One promising method for achieving this is the sequential seeding of multiple generations of epitaxial nanowires using metal seed particles. However, it is difficult to control and predict the position of second and higher generation nanowires with respect to the first generation. Here we demonstrate a procedure for controlling the position of second-generation epitaxial nanowire branches on vertically aligned nanowire trunks. This method uses a spun-on polymer layer that masks first-generation wires to a specified height, preventing the growth of nanowire branches at lower positions as well as new nanowire growth on the substrate. This method appears not to be dependent on the materials or growth system (in this case MOVPE-grown GaP is demonstrated), and hence is likely to be applicable to a variety of materials systems and growth procedures using metal seed particles. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanotechnology
volume
18
issue
3
article number
035601
publisher
IOP Publishing
external identifiers
  • wos:000243840700015
  • scopus:33846841021
ISSN
0957-4484
DOI
10.1088/0957-4484/18/3/035601
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Solid State Physics (011013006), Polymer and Materials Chemistry (LTH) (011001041)
id
5eec6a51-5689-4fec-a3c4-7f3dfb0f6631 (old id 676005)
alternative location
http://www.iop.org/EJ/abstract/0957-4484/18/3/035601
date added to LUP
2016-04-01 12:14:08
date last changed
2020-01-12 09:27:48
@article{5eec6a51-5689-4fec-a3c4-7f3dfb0f6631,
  abstract     = {The production of complex three-dimensional dendritic structures is an important step in the application of semiconductor nanowires. One promising method for achieving this is the sequential seeding of multiple generations of epitaxial nanowires using metal seed particles. However, it is difficult to control and predict the position of second and higher generation nanowires with respect to the first generation. Here we demonstrate a procedure for controlling the position of second-generation epitaxial nanowire branches on vertically aligned nanowire trunks. This method uses a spun-on polymer layer that masks first-generation wires to a specified height, preventing the growth of nanowire branches at lower positions as well as new nanowire growth on the substrate. This method appears not to be dependent on the materials or growth system (in this case MOVPE-grown GaP is demonstrated), and hence is likely to be applicable to a variety of materials systems and growth procedures using metal seed particles.},
  author       = {Dick Thelander, Kimberly and Deppert, Knut and Larsson, Magnus and Seifert, Werner and Wallenberg, Reine and Samuelson, Lars},
  issn         = {0957-4484},
  language     = {eng},
  number       = {3},
  publisher    = {IOP Publishing},
  series       = {Nanotechnology},
  title        = {Height-controlled nanowire branches on nanotrees using a polymer mask},
  url          = {http://dx.doi.org/10.1088/0957-4484/18/3/035601},
  doi          = {10.1088/0957-4484/18/3/035601},
  volume       = {18},
  year         = {2007},
}