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Structural Study of the Photo-Mediated Growth of Silver Nanoprisms

Knaapila, Matti LU ; Vainio, Ulla ; Canton, Sophie E. LU and Karlsson, Gunnel LU (2020) In Molecules (Basel, Switzerland) 25(22).
Abstract

We present a small-angle X-ray scattering (SAXS) study of the anisotropic photoinduced growth of silver (Ag) nanoprisms in aqueous dispersions. The growth of nearly spherical (<10 nm) Ag particles into large (>40 nm) and thin (<10 nm) triangular nanoprisms induced by 550 nm laser is followed in terms of particle size using indirect and direct methods for irradiation times up to 150 min. During the process, the surface-to-volume ratio of the particles decreased. The SAXS data of the initial solution fit well to the model of polydisperse spheres with pronounced average diameters around 7.4 nm and 10 nm. The data after 45 min irradiation fit well to the model containing approximately the same amount of the initial particles and... (More)

We present a small-angle X-ray scattering (SAXS) study of the anisotropic photoinduced growth of silver (Ag) nanoprisms in aqueous dispersions. The growth of nearly spherical (<10 nm) Ag particles into large (>40 nm) and thin (<10 nm) triangular nanoprisms induced by 550 nm laser is followed in terms of particle size using indirect and direct methods for irradiation times up to 150 min. During the process, the surface-to-volume ratio of the particles decreased. The SAXS data of the initial solution fit well to the model of polydisperse spheres with pronounced average diameters around 7.4 nm and 10 nm. The data after 45 min irradiation fit well to the model containing approximately the same amount of the initial particles and the end product, the nanoprisms.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nanoprism dispersion
in
Molecules (Basel, Switzerland)
volume
25
issue
22
article number
5413
publisher
MDPI AG
external identifiers
  • scopus:85096735978
  • pmid:33228058
ISSN
1420-3049
DOI
10.3390/molecules25225413
language
English
LU publication?
yes
id
6c4ae8e5-188f-46d5-ab8a-5be9bd0a8297
date added to LUP
2020-12-03 13:57:13
date last changed
2024-04-03 18:52:52
@article{6c4ae8e5-188f-46d5-ab8a-5be9bd0a8297,
  abstract     = {{<p>We present a small-angle X-ray scattering (SAXS) study of the anisotropic photoinduced growth of silver (Ag) nanoprisms in aqueous dispersions. The growth of nearly spherical (&lt;10 nm) Ag particles into large (&gt;40 nm) and thin (&lt;10 nm) triangular nanoprisms induced by 550 nm laser is followed in terms of particle size using indirect and direct methods for irradiation times up to 150 min. During the process, the surface-to-volume ratio of the particles decreased. The SAXS data of the initial solution fit well to the model of polydisperse spheres with pronounced average diameters around 7.4 nm and 10 nm. The data after 45 min irradiation fit well to the model containing approximately the same amount of the initial particles and the end product, the nanoprisms.</p>}},
  author       = {{Knaapila, Matti and Vainio, Ulla and Canton, Sophie E. and Karlsson, Gunnel}},
  issn         = {{1420-3049}},
  keywords     = {{nanoprism dispersion}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{22}},
  publisher    = {{MDPI AG}},
  series       = {{Molecules (Basel, Switzerland)}},
  title        = {{Structural Study of the Photo-Mediated Growth of Silver Nanoprisms}},
  url          = {{http://dx.doi.org/10.3390/molecules25225413}},
  doi          = {{10.3390/molecules25225413}},
  volume       = {{25}},
  year         = {{2020}},
}