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Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires
Gold nanowires with diameters ranging from 20 to 90 nm were fabricated by the electrochemical deposition technique in etched ion track polycarbonate templates and were then irradiated by Xe and Kr ions with the energy in MeV range. The surface modification of nanowires was studied by scanning electr...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449989/ https://www.ncbi.nlm.nih.gov/pubmed/28505116 http://dx.doi.org/10.3390/nano7050108 |
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author | Cheng, Yaxiong Yao, Huijun Duan, Jinglai Xu, Lijun Zhai, Pengfei Lyu, Shuangbao Chen, Yonghui Maaz, Khan Mo, Dan Sun, Youmei Liu, Jie |
author_facet | Cheng, Yaxiong Yao, Huijun Duan, Jinglai Xu, Lijun Zhai, Pengfei Lyu, Shuangbao Chen, Yonghui Maaz, Khan Mo, Dan Sun, Youmei Liu, Jie |
author_sort | Cheng, Yaxiong |
collection | PubMed |
description | Gold nanowires with diameters ranging from 20 to 90 nm were fabricated by the electrochemical deposition technique in etched ion track polycarbonate templates and were then irradiated by Xe and Kr ions with the energy in MeV range. The surface modification of nanowires was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations. Different craters with and without protrusion on the gold nanowires were analyzed, and the two corresponding formation mechanisms, i.e., plastic flow and micro-explosion, were investigated. In addition, the sputtered gold nanoparticles caused by ion irradiation were studied and it was confirmed that the surface damage produced in gold nanowires was increased as the diameter of the nanowires decreased. It was also found that heavy ion irradiation can also create stacking fault tetrahedrons (SFTs) in gold nanowires and three different SFTs were confirmed in irradiated nanowires. A statistical analysis of the size distribution of SFTs in gold nanowires proved that the average size distribution of SFT was positively related to the nuclear stopping power of incident ions, i.e., the higher nuclear stopping power of incident ions could generate SFT with a larger average size in gold nanowires. |
format | Online Article Text |
id | pubmed-5449989 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-54499892017-06-01 Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires Cheng, Yaxiong Yao, Huijun Duan, Jinglai Xu, Lijun Zhai, Pengfei Lyu, Shuangbao Chen, Yonghui Maaz, Khan Mo, Dan Sun, Youmei Liu, Jie Nanomaterials (Basel) Article Gold nanowires with diameters ranging from 20 to 90 nm were fabricated by the electrochemical deposition technique in etched ion track polycarbonate templates and were then irradiated by Xe and Kr ions with the energy in MeV range. The surface modification of nanowires was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations. Different craters with and without protrusion on the gold nanowires were analyzed, and the two corresponding formation mechanisms, i.e., plastic flow and micro-explosion, were investigated. In addition, the sputtered gold nanoparticles caused by ion irradiation were studied and it was confirmed that the surface damage produced in gold nanowires was increased as the diameter of the nanowires decreased. It was also found that heavy ion irradiation can also create stacking fault tetrahedrons (SFTs) in gold nanowires and three different SFTs were confirmed in irradiated nanowires. A statistical analysis of the size distribution of SFTs in gold nanowires proved that the average size distribution of SFT was positively related to the nuclear stopping power of incident ions, i.e., the higher nuclear stopping power of incident ions could generate SFT with a larger average size in gold nanowires. MDPI 2017-05-15 /pmc/articles/PMC5449989/ /pubmed/28505116 http://dx.doi.org/10.3390/nano7050108 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Cheng, Yaxiong Yao, Huijun Duan, Jinglai Xu, Lijun Zhai, Pengfei Lyu, Shuangbao Chen, Yonghui Maaz, Khan Mo, Dan Sun, Youmei Liu, Jie Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title | Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title_full | Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title_fullStr | Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title_full_unstemmed | Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title_short | Surface Modification and Damage of MeV-Energy Heavy Ion Irradiation on Gold Nanowires |
title_sort | surface modification and damage of mev-energy heavy ion irradiation on gold nanowires |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449989/ https://www.ncbi.nlm.nih.gov/pubmed/28505116 http://dx.doi.org/10.3390/nano7050108 |
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