Multimode Electron Tomography as a Tool to Characterize the Internal Structure and Morphology of Gold Nanoparticles
| Main Authors: | Naomi Winckelmans, Thomas Altantzis, Marek Grzelczak, Ana Sánchez-Iglesias, Luis M. Liz-Marzán, Sara Bals |
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| Format: | Article eJournal |
| Terbitan: |
, 2018
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| Online Access: |
https://zenodo.org/record/1217924 |
Daftar Isi:
- Three dimensional (3D) characterization of structural defects in nanoparticles by transmission electron microscopy is far from straightforward. We propose the use of a dose-efficient approach, so-called multimode tomography, during which tilt series of low and high angle annular dark field scanning transmission electron microscopy projection images are acquired simultaneously. In this manner, not only reliable information can be obtained concerning the shape of the nanoparticles, but also the twin planes can be clearly visualized in 3D. As an example, we demonstrate the application of this approach to identify the position of the seeds with respect to the twinning planes in anisotropic gold nanoparticles synthesized using a seed mediated growth approach.
- L.M.L.-M. and M.G. acknowledge funding from the Spanish Ministerio de Economía y Competitividad (grant MAT2013-46101-R).