Physical response of gold nanoparticles to single self-ion bombardment
Abstract
The reliability of nanomaterials depends on maintaining their specific sizes and structures. However, the stability of many nanomaterials in radiation environments remains uncertain due to the lack of a fully developed fundamental understanding of the radiation response on the nanoscale. To provide an insight into the dynamic aspects of single ion effects in nanomaterials, gold nanoparticles (NPs) with nominal diameters of 5, 20, and 60 nm were subjected to self-ion irradiation at energies of 46 keV, 2.8 MeV, and 10 MeV in situ inside of a transmission electron microscope. Ion interactions created a variety of far-from-equilibrium structures including small (~1 nm) sputtered nanoclusters from the parent NPs of all sizes. Single ions created surface bumps and elongated nanofilaments in the 60 nm NPs. As a result, similar shape changes were observed in the 20 nm nanoparticles, while the 5 nm nanoparticles were transiently melted or explosively broken apart.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1145717
- Report Number(s):
- SAND-2014-4271J
Journal ID: ISSN 0884-2914; applab; PII: S0884291414002593
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Materials Research
- Additional Journal Information:
- Journal Volume: 29; Journal Issue: 20; Related Information: Proposed for publication in Journal of Materials Research.; Journal ID: ISSN 0884-2914
- Publisher:
- Materials Research Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Bufford, Daniel C., and Hattar, Khalid. Physical response of gold nanoparticles to single self-ion bombardment. United States: N. p., 2014.
Web. doi:10.1557/jmr.2014.259.
Bufford, Daniel C., & Hattar, Khalid. Physical response of gold nanoparticles to single self-ion bombardment. United States. https://doi.org/10.1557/jmr.2014.259
Bufford, Daniel C., and Hattar, Khalid. Tue .
"Physical response of gold nanoparticles to single self-ion bombardment". United States. https://doi.org/10.1557/jmr.2014.259. https://www.osti.gov/servlets/purl/1145717.
@article{osti_1145717,
title = {Physical response of gold nanoparticles to single self-ion bombardment},
author = {Bufford, Daniel C. and Hattar, Khalid},
abstractNote = {The reliability of nanomaterials depends on maintaining their specific sizes and structures. However, the stability of many nanomaterials in radiation environments remains uncertain due to the lack of a fully developed fundamental understanding of the radiation response on the nanoscale. To provide an insight into the dynamic aspects of single ion effects in nanomaterials, gold nanoparticles (NPs) with nominal diameters of 5, 20, and 60 nm were subjected to self-ion irradiation at energies of 46 keV, 2.8 MeV, and 10 MeV in situ inside of a transmission electron microscope. Ion interactions created a variety of far-from-equilibrium structures including small (~1 nm) sputtered nanoclusters from the parent NPs of all sizes. Single ions created surface bumps and elongated nanofilaments in the 60 nm NPs. As a result, similar shape changes were observed in the 20 nm nanoparticles, while the 5 nm nanoparticles were transiently melted or explosively broken apart.},
doi = {10.1557/jmr.2014.259},
journal = {Journal of Materials Research},
number = 20,
volume = 29,
place = {United States},
year = {Tue Sep 23 00:00:00 EDT 2014},
month = {Tue Sep 23 00:00:00 EDT 2014}
}
Web of Science