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Imaging atomic structure in metal nanoparticles using high-resolution cryo-TEM

Balmes, Olivier LU ; Malm, Jan-Olle LU ; Pettersson, N ; Karlsson, Gunnel LU and Bovin, Jan-Olov LU (2006) In Microscopy and Microanalysis 12(2). p.145-150
Abstract
It has been shown, by imaging gold (200) planes, that it is possible to achieve better than 0.20-nm structural resolution in cryo-transmission electron microscopy (cryo-TEM). This has been done using commercially available cryo equipment and using a 300-kV field emission gun (FEG) TEM. The images of 15-nm gold particles embedded in amorphous frozen water clearly show the (111) planes (separated by 0.235 nm) in gold. Fourier transform demonstrates the presence of (200) planes in the image, proving a resolution of better than 0.20 nm. The experimental results are Supported by image simulations using the multislice method. These simulations suggest that it should be possible to achieve the same resolution even in smaller particles and... (More)
It has been shown, by imaging gold (200) planes, that it is possible to achieve better than 0.20-nm structural resolution in cryo-transmission electron microscopy (cryo-TEM). This has been done using commercially available cryo equipment and using a 300-kV field emission gun (FEG) TEM. The images of 15-nm gold particles embedded in amorphous frozen water clearly show the (111) planes (separated by 0.235 nm) in gold. Fourier transform demonstrates the presence of (200) planes in the image, proving a resolution of better than 0.20 nm. The experimental results are Supported by image simulations using the multislice method. These simulations suggest that it should be possible to achieve the same resolution even in smaller particles and particles of lighter elements. The crucial experimental problem to overcome is keeping the thickness of the amorphous film low and to work at low electron dose conditions. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
image simulation, freezing, plunge, structural resolution, gold particles, cryo-TEM, nanoparticles
in
Microscopy and Microanalysis
volume
12
issue
2
pages
145 - 150
publisher
Cambridge University Press
external identifiers
  • wos:000236573900006
  • scopus:33644864638
ISSN
1435-8115
DOI
10.1017/S1431927606060119
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: Polymer and Materials Chemistry (LTH) (011001041), Max-laboratory (011012005)
id
8e2da6d9-6d61-41d5-8a18-38ca763f5f9b (old id 414347)
date added to LUP
2016-04-01 11:48:49
date last changed
2021-02-17 07:34:21
@article{8e2da6d9-6d61-41d5-8a18-38ca763f5f9b,
  abstract     = {It has been shown, by imaging gold (200) planes, that it is possible to achieve better than 0.20-nm structural resolution in cryo-transmission electron microscopy (cryo-TEM). This has been done using commercially available cryo equipment and using a 300-kV field emission gun (FEG) TEM. The images of 15-nm gold particles embedded in amorphous frozen water clearly show the (111) planes (separated by 0.235 nm) in gold. Fourier transform demonstrates the presence of (200) planes in the image, proving a resolution of better than 0.20 nm. The experimental results are Supported by image simulations using the multislice method. These simulations suggest that it should be possible to achieve the same resolution even in smaller particles and particles of lighter elements. The crucial experimental problem to overcome is keeping the thickness of the amorphous film low and to work at low electron dose conditions.},
  author       = {Balmes, Olivier and Malm, Jan-Olle and Pettersson, N and Karlsson, Gunnel and Bovin, Jan-Olov},
  issn         = {1435-8115},
  language     = {eng},
  number       = {2},
  pages        = {145--150},
  publisher    = {Cambridge University Press},
  series       = {Microscopy and Microanalysis},
  title        = {Imaging atomic structure in metal nanoparticles using high-resolution cryo-TEM},
  url          = {http://dx.doi.org/10.1017/S1431927606060119},
  doi          = {10.1017/S1431927606060119},
  volume       = {12},
  year         = {2006},
}