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In-situ MOVPE formation of alternative seed particles for nanowire growth

Mårtensson, Erik LU (2015) PHYM01 20142
Solid State Physics
Department of Physics
Abstract
Nanowires have shown great promise in the research field, however, it seems quite a challenge to get them incorporated into the silicon industry and entering the commercial field. One step towards this is to substitute the gold which is used for the catalyst particle for a different material, compatible with the silicon industry. In this project, the possibility of using in-situ nucleation inside of an MOVPE-reactor to form particles
was examined. With tin, seed particles were successfully grown, and it was shown that by varying the growth conditions, both the size and the density of the particles can be controlled. Attempts using zinc, selenium and antimony were unsuccessful, mainly due to high vapour pressures and limitations on... (More)
Nanowires have shown great promise in the research field, however, it seems quite a challenge to get them incorporated into the silicon industry and entering the commercial field. One step towards this is to substitute the gold which is used for the catalyst particle for a different material, compatible with the silicon industry. In this project, the possibility of using in-situ nucleation inside of an MOVPE-reactor to form particles
was examined. With tin, seed particles were successfully grown, and it was shown that by varying the growth conditions, both the size and the density of the particles can be controlled. Attempts using zinc, selenium and antimony were unsuccessful, mainly due to high vapour pressures and limitations on precursor flows. Aluminium showed some promising results with particle formation at temperatures well below the melting point. However, they were lacking in consistency and reproducibility, so to utilize this method with aluminium, further studies are required. (Less)
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author
Mårtensson, Erik LU
supervisor
organization
course
PHYM01 20142
year
type
H2 - Master's Degree (Two Years)
subject
keywords
MOVPE, Nanowire, seed formation, catalyst formation, in-situ, alternative seed particles
language
English
id
5365842
date added to LUP
2015-05-14 18:14:31
date last changed
2015-06-02 09:25:41
@misc{5365842,
  abstract     = {Nanowires have shown great promise in the research field, however, it seems quite a challenge to get them incorporated into the silicon industry and entering the commercial field. One step towards this is to substitute the gold which is used for the catalyst particle for a different material, compatible with the silicon industry. In this project, the possibility of using in-situ nucleation inside of an MOVPE-reactor to form particles
was examined. With tin, seed particles were successfully grown, and it was shown that by varying the growth conditions, both the size and the density of the particles can be controlled. Attempts using zinc, selenium and antimony were unsuccessful, mainly due to high vapour pressures and limitations on precursor flows. Aluminium showed some promising results with particle formation at temperatures well below the melting point. However, they were lacking in consistency and reproducibility, so to utilize this method with aluminium, further studies are required.},
  author       = {Mårtensson, Erik},
  keyword      = {MOVPE,Nanowire,seed formation,catalyst formation,in-situ,alternative seed particles},
  language     = {eng},
  note         = {Student Paper},
  title        = {In-situ MOVPE formation of alternative seed particles for nanowire growth},
  year         = {2015},
}