中国物理B ›› 2016, Vol. 25 ›› Issue (4): 46105-046105.doi: 10.1088/1674-1056/25/4/046105
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
Large scale silver nanowires network fabricated by MeV hydrogen (H+) ion beam irradiation
Honey S, Naseem S, Ishaq A, Maaza M, Bhatti M T, Wan D
- 1 Center of Excellence in Solid State Physics, University of the Punjab, Lahore, Pakistan;
2 National Center for Physics, Quaid-i-Azam University, Islamabad 44000, Pakistan;
3 UNESCO–UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
4 Nanosciences African Network (NANOAFNET), iThemba LABS, National Research Foundation, Old Faure road, P. O. Box 722, Somerset West 7129, South Africa;
5 Department of Physics, Bahauddin Zakariya University, Multan 60800, Pakistan;
6 School of Materials Science and Engineering, Shanghai University, Shanghai 201900, China
Large scale silver nanowires network fabricated by MeV hydrogen (H+) ion beam irradiation
Honey S1,2,3,4, Naseem S1, Ishaq A2,3,4, Maaza M3,4, Bhatti M T5, Wan D6
- 1 Center of Excellence in Solid State Physics, University of the Punjab, Lahore, Pakistan;
2 National Center for Physics, Quaid-i-Azam University, Islamabad 44000, Pakistan;
3 UNESCO–UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P. O. Box 392, Pretoria, South Africa;
4 Nanosciences African Network (NANOAFNET), iThemba LABS, National Research Foundation, Old Faure road, P. O. Box 722, Somerset West 7129, South Africa;
5 Department of Physics, Bahauddin Zakariya University, Multan 60800, Pakistan;
6 School of Materials Science and Engineering, Shanghai University, Shanghai 201900, China
摘要： A random two-dimensional large scale nano-network of silver nanowires (Ag-NWs) is fabricated by MeV hydrogen (H+) ion beam irradiation. Ag-NWs are irradiated under H+ ion beam at different ion fluences at room temperature. The Ag-NW network is fabricated by H+ ion beam-induced welding of Ag-NWs at intersecting positions. H+ ion beam induced welding is confirmed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Moreover, the structure of Ag NWs remains stable under H+ ion beam, and networks are optically transparent. Morphology also remains stable under H+ ion beam irradiation. No slicings or cuttings of Ag-NWs are observed under MeV H+ ion beam irradiation. The results exhibit that the formation of Ag-NW network proceeds through three steps: ion beam induced thermal spikes lead to the local heating of Ag-NWs, the formation of simple junctions on small scale, and the formation of a large scale network. This observation is useful for using Ag-NWs based devices in upper space where protons are abandoned in an energy range from MeV to GeV. This high-quality Ag-NW network can also be used as a transparent electrode for optoelectronics devices.
中图分类号: (Ion radiation effects)
- 61.80.Jh