Issue 48, 2018

3D characterization of heat-induced morphological changes of Au nanostars by fast in situ electron tomography

Abstract

A thorough understanding of the thermal stability and potential reshaping of anisotropic gold nanostars is required for various potential applications. Combination of a tomographic heating holder with fast tilt series acquisition has been used to monitor temperature-induced morphological changes of Au nanostars. The outcome of our 3D investigations can be used as an input for boundary element method simulations, enabling us to investigate the influence of reshaping on the nanostars’ plasmonic properties. Our work leads to a better understanding of the mechanism behind thermal reshaping. In addition, the approach presented here is generic and can hence be applied to a wide variety of nanoparticles made of different materials and with arbitrary morphology.

Graphical abstract: 3D characterization of heat-induced morphological changes of Au nanostars by fast in situ electron tomography

Supplementary files

Article information

Article type
Paper
Submitted
16 out 2018
Accepted
28 nov 2018
First published
28 nov 2018
This article is Open Access
Creative Commons BY license

Nanoscale, 2018,10, 22792-22801

3D characterization of heat-induced morphological changes of Au nanostars by fast in situ electron tomography

H. Vanrompay, E. Bladt, W. Albrecht, A. Béché, M. Zakhozheva, A. Sánchez-Iglesias, L. M. Liz-Marzán and S. Bals, Nanoscale, 2018, 10, 22792 DOI: 10.1039/C8NR08376B

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