Encapsulation method for atom probe tomography analysis of nanoparticles

Ultramicroscopy
David J LarsonThomas F Kelly

Abstract

Open-space nanomaterials are a widespread class of technologically important materials that are generally incompatible with analysis by atom probe tomography (APT) due to issues with specimen preparation, field evaporation and data reconstruction. The feasibility of encapsulating such non-compact matter in a matrix to enable APT measurements is investigated using nanoparticles as an example. Simulations of field evaporation of a void, and the resulting artifacts in ion trajectory, underpin the requirement that no voids remain after encapsulation. The approach is demonstrated by encapsulating Pt nanoparticles in an ZnO:Al matrix created by atomic layer deposition, a growth technique which offers very high surface coverage and conformality. APT measurements of the Pt nanoparticles are correlated with transmission electron microscopy images and numerical simulations in order to evaluate the accuracy of the APT reconstruction.

References

Feb 11, 2005·Nature·Stephen C Kowalczykowski
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Nov 16, 2007·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Michael K MillerDavid J Larson
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Dec 16, 2010·Journal of Microscopy·D J LarsonT F Kelly
Feb 4, 2012·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Peter J FelferJulie M Cairney
Oct 13, 2012·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·David J LarsonThomas F Kelly
Mar 20, 2013·Ultramicroscopy·Jonathan Weidow
May 3, 2013·Journal of the American Chemical Society·Yizhi XiangNorbert Kruse

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Citations

Nov 24, 2016·Scientific Reports·Arun DevarajKarthikeyan K Ramasamy
Feb 7, 2017·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Ty J Prosa, David J Larson
May 3, 2018·Angewandte Chemie·Joel E SchmidtBert M Weckhuysen
Feb 5, 2019·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Se-Ho KimPyuck-Pa Choi
Jan 14, 2020·Advanced Materials·Se-Ho KimBaptiste Gault
Feb 9, 2019·Proceedings of the National Academy of Sciences of the United States of America·Sandra D TaylorKevin M Rosso
Feb 26, 2020·Nature Communications·Xing WangJonathan D Poplawsky
Jun 9, 2021·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Jan P Josten, Peter J Felfer
Jul 31, 2020·Ultramicroscopy·Cédric BarrooDavid C Bell
Oct 28, 2019·Environmental Science & Technology·Andrew J FrierdichScarlett C Southall

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