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Title: Laser-material interaction during atom probe tomography of oxides with embedded metal nanoparticles

Abstract

Here, oxide-supported metal nano-particles are of great interest in catalysis but also in the development of new large-spectrum-absorption materials. The design of such nano materials requires three-dimensional characterization with a high spatial resolution and elemental selectivity. The laser assisted Atom Probe Tomography (La-APT) presents both these capacities if an accurate understanding of laser-material interaction is developed. In this paper, we focus on the fundamental physics of field evaporation as a function of sample geometry, laser power, and DC electric field for Au nanoparticles embedded in MgO. By understanding the laser-material interaction through experiments and a theoretical model of heat diffusion inside the sample after the interaction with laser pulse, we point out the physical origin of the noise and determine the conditions to reduce it by more than one order of magnitude, improving the sensitivity of the La-APT for metal-dielectric composites.

Authors:
 [1];  [1];  [2];  [1]
  1. Univ. et INSA de Rouen - UMR CNRS 6634 - Normandie Univ., Saint Etienne du Rouvray (France)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1339868
Report Number(s):
PNNL-SA-122789
Journal ID: ISSN 0021-8979; 49075
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 120; Journal Issue: 16; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ultra-fast laser; field evaporation; gold; absorption; MGO; nanospheres; performance; ionization; simulation; TIP; Environmental Molecular Sciences Laboratory

Citation Formats

Shinde, D., Arnoldi, L., Devaraj, A., and Vella, A.. Laser-material interaction during atom probe tomography of oxides with embedded metal nanoparticles. United States: N. p., 2016. Web. doi:10.1063/1.4966122.
Shinde, D., Arnoldi, L., Devaraj, A., & Vella, A.. Laser-material interaction during atom probe tomography of oxides with embedded metal nanoparticles. United States. doi:10.1063/1.4966122.
Shinde, D., Arnoldi, L., Devaraj, A., and Vella, A.. Fri . "Laser-material interaction during atom probe tomography of oxides with embedded metal nanoparticles". United States. doi:10.1063/1.4966122. https://www.osti.gov/servlets/purl/1339868.
@article{osti_1339868,
title = {Laser-material interaction during atom probe tomography of oxides with embedded metal nanoparticles},
author = {Shinde, D. and Arnoldi, L. and Devaraj, A. and Vella, A.},
abstractNote = {Here, oxide-supported metal nano-particles are of great interest in catalysis but also in the development of new large-spectrum-absorption materials. The design of such nano materials requires three-dimensional characterization with a high spatial resolution and elemental selectivity. The laser assisted Atom Probe Tomography (La-APT) presents both these capacities if an accurate understanding of laser-material interaction is developed. In this paper, we focus on the fundamental physics of field evaporation as a function of sample geometry, laser power, and DC electric field for Au nanoparticles embedded in MgO. By understanding the laser-material interaction through experiments and a theoretical model of heat diffusion inside the sample after the interaction with laser pulse, we point out the physical origin of the noise and determine the conditions to reduce it by more than one order of magnitude, improving the sensitivity of the La-APT for metal-dielectric composites.},
doi = {10.1063/1.4966122},
journal = {Journal of Applied Physics},
number = 16,
volume = 120,
place = {United States},
year = {Fri Oct 28 00:00:00 EDT 2016},
month = {Fri Oct 28 00:00:00 EDT 2016}
}

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Works referenced in this record:

High-performance bulk thermoelectrics with all-scale hierarchical architectures
journal, September 2012

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