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The information content of lattice resolved high angle tilt series of nanoparticles

Published online by Cambridge University Press:  01 February 2011

Xiaojing Xu ,
Zineb Saghi ,
Beverley Inkson  and
Günter Möbus
Xiaojing Xu
Affiliation:
xj.xu@sheffield.ac.uk, University of Sheffield, Engineering Materials, Mappin Street, Sheffield, N/A, United Kingdom, +44 114 2225512
Zineb Saghi
Affiliation:
z.saghi@shef.ac.uk, University of Sheffield, Engineering Materials, Mappin Street, Sheffield, N/A, United Kingdom
Beverley Inkson
Affiliation:
beverley.inkson@shef.ac.uk, University of Sheffield, Engineering Materials, Mappin Street, Sheffield, N/A, United Kingdom
Günter Möbus
Affiliation:
g.moebus@shef.ac.uk, University of Sheffield, Engineering Materials, Mappin Street, Sheffield, N/A, United Kingdom
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Abstract

Gold nanoparticles are observed by high-resolution electron microscopy over a high tilt range equivalent to tomographic data acquisition. It is demonstrated how the lattice resolved contrast can be used to identify the internal multiply-twinned microstructure, as the large number of viewing direction allows to image each of the grain-to-grain displacement vectors in at least one image. Furthermore application of tomographic reconstruction is shown after binarisation of the original images to estimate the external shape from the support of the particle in the case of convex objects.

Keywords

nanostructuretransmission electron microscopy (TEM)grain boundaries
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1026: Symposium C – Quantitative Electron Microscopy for Materials Science , 2007 , 1026-C08-04
Copyright
Copyright © Materials Research Society 2008

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