Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Magnetic-field directed self-assembly and chain formation of functional aerosol nanoparticles

Deppert, Knut LU orcid ; Preger, Calle LU orcid ; Josefsson, Martin LU orcid ; Westerström, Rasmus LU and Messing, Maria LU (2020) European Aerosol Conference 2020
Abstract
Self-assembly of nanoparticles into vertical structures or larger ensembles can be a powerful method to achieve a strong collective behavior while still obtaining many of the same properties of the individual nanoparticles. In this study, we achieve directed self-assembly of magnetic nanoparticles into nanochains when depositing in a combined magnetic and electric field (M-ESP). We show that the Co nanoparticles are spontaneously magnetized in the aerosol phase, and that the role of the external magnetic field is mainly to guide the deposition in a certain direction.
Lastly, we will present chain formation of mixed materials. Here, we combine a strong magnetic material, with other elements to achieve the same chain structure, but with... (More)
Self-assembly of nanoparticles into vertical structures or larger ensembles can be a powerful method to achieve a strong collective behavior while still obtaining many of the same properties of the individual nanoparticles. In this study, we achieve directed self-assembly of magnetic nanoparticles into nanochains when depositing in a combined magnetic and electric field (M-ESP). We show that the Co nanoparticles are spontaneously magnetized in the aerosol phase, and that the role of the external magnetic field is mainly to guide the deposition in a certain direction.
Lastly, we will present chain formation of mixed materials. Here, we combine a strong magnetic material, with other elements to achieve the same chain structure, but with a desired surface functionalization. Nanoparticle chains can therefore be formed with different functionalities, depending on the mixing material. This opens up for further combination to tune the functionalization of the nanoparticle chain structure. (Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
European Aerosol Conference 2020
conference location
Aachen, Germany
conference dates
2020-08-31 - 2020-09-04
language
Swedish
LU publication?
yes
id
a0c84db5-db17-43fd-b13f-84db5ef9508d
date added to LUP
2020-11-30 10:09:36
date last changed
2022-04-05 14:57:52
@misc{a0c84db5-db17-43fd-b13f-84db5ef9508d,
  abstract     = {{Self-assembly of nanoparticles into vertical structures or larger ensembles can be a powerful method to achieve a strong collective behavior while still obtaining many of the same properties of the individual nanoparticles. In this study, we achieve directed self-assembly of magnetic nanoparticles into nanochains when depositing in a combined magnetic and electric field (M-ESP). We show that the Co nanoparticles are spontaneously magnetized in the aerosol phase, and that the role of the external magnetic field is mainly to guide the deposition in a certain direction.<br/>Lastly, we will present chain formation of mixed materials. Here, we combine a strong magnetic material, with other elements to achieve the same chain structure, but with a desired surface functionalization. Nanoparticle chains can therefore be formed with different functionalities, depending on the mixing material. This opens up for further combination to tune the functionalization of the nanoparticle chain structure.}},
  author       = {{Deppert, Knut and Preger, Calle and Josefsson, Martin and Westerström, Rasmus and Messing, Maria}},
  language     = {{swe}},
  month        = {{08}},
  title        = {{Magnetic-field directed self-assembly and chain formation of functional aerosol nanoparticles}},
  year         = {{2020}},
}