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InSb Nanoparticles Produced by Spark Discharge Generation

Ludvigsson, Linus LU ; Snellman, Markus LU ; Ek, Martin LU orcid ; Deppert, Knut LU orcid and Messing, Maria LU (2019) European Aerosol Conference 2019
Abstract
We present the synthesis of monodisperse aerosol InSb nanoparticles of high crystalline quality using the spark discharge generation (SDG) method. Apart from successfully using metallic In and Sb electrodes, we demonstrate the feasibility of using pure semiconducting InSb wafers as electrode material. We investigated the influence of carrier gas on the quality of the size selected particles. We show that addition of 5% hydrogen in the carrier gas (nitrogen or argon) reduced particle oxidation and drastically lowered the compaction temperatures. Further we found an influence of the compaction temperature on the stoichiometry and crystallinity. While uncompacted particles contained excess Sb, the InSb particles reached 1:1 molar ratio after... (More)
We present the synthesis of monodisperse aerosol InSb nanoparticles of high crystalline quality using the spark discharge generation (SDG) method. Apart from successfully using metallic In and Sb electrodes, we demonstrate the feasibility of using pure semiconducting InSb wafers as electrode material. We investigated the influence of carrier gas on the quality of the size selected particles. We show that addition of 5% hydrogen in the carrier gas (nitrogen or argon) reduced particle oxidation and drastically lowered the compaction temperatures. Further we found an influence of the compaction temperature on the stoichiometry and crystallinity. While uncompacted particles contained excess Sb, the InSb particles reached 1:1 molar ratio after full compaction. The spark discharge method shows promise for generating large quantities of high-quality InSb nanoparticles with applications in e.g. optoelectronics and plasmonics, and the method may be extended to generate nanoparticles of other semiconductor materials. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
European Aerosol Conference 2019
conference location
Gothenburg, Sweden
conference dates
2019-08-25 - 2019-08-30
language
English
LU publication?
yes
id
7d4b43db-aead-4e90-9ecf-5483263d3ff1
date added to LUP
2019-09-04 14:47:17
date last changed
2023-02-24 13:54:37
@misc{7d4b43db-aead-4e90-9ecf-5483263d3ff1,
  abstract     = {{We present the synthesis of monodisperse aerosol InSb nanoparticles of high crystalline quality using the spark discharge generation (SDG) method. Apart from successfully using metallic In and Sb electrodes, we demonstrate the feasibility of using pure semiconducting InSb wafers as electrode material. We investigated the influence of carrier gas on the quality of the size selected particles. We show that addition of 5% hydrogen in the carrier gas (nitrogen or argon) reduced particle oxidation and drastically lowered the compaction temperatures. Further we found an influence of the compaction temperature on the stoichiometry and crystallinity. While uncompacted particles contained excess Sb, the InSb particles reached 1:1 molar ratio after full compaction. The spark discharge method shows promise for generating large quantities of high-quality InSb nanoparticles with applications in e.g. optoelectronics and plasmonics, and the method may be extended to generate nanoparticles of other semiconductor materials.}},
  author       = {{Ludvigsson, Linus and Snellman, Markus and Ek, Martin and Deppert, Knut and Messing, Maria}},
  language     = {{eng}},
  month        = {{08}},
  title        = {{InSb Nanoparticles Produced by Spark Discharge Generation}},
  year         = {{2019}},
}