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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...

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Autores principales: Cheng, Yaxiong, Yao, Huijun, Duan, Jinglai, Xu, Lijun, Zhai, Pengfei, Lyu, Shuangbao, Chen, Yonghui, Maaz, Khan, Mo, Dan, Sun, Youmei, Liu, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
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.
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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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