Physical response of gold nanoparticles to single self-ion bombardment

Bufford, Daniel C.; Hattar, Khalid

doi:10.1557/jmr.2014.259

Title: Physical response of gold nanoparticles to single self-ion bombardment

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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:

Bufford, Daniel C. ^[1]; Hattar, Khalid ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: Tue Sep 23 00:00:00 EDT 2014

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.

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                    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

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                    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.

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@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}

}

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