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Super-low turn-on and threshold electric fields of plasma-treated partly Fe-filled carbon nanotube films |
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| Authors: | Xuchun Gui Kunlin Wang Eryang Xu Dan Zhu Feiyu Kang Dejie Li Dehai Wu |
| Affiliation: | a Key Laboratory for Advanced Manufacturing by Material Processing Technology and Department of Mechanical Engineering, Tsinghua University, Beijing 100084, PR China b Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China c Department of Electronic Engineering, Tsinghua University, Beijing 100084, PR China d Department of Engineering Physics, Tsinghua University, Beijing 100084, PR China e Advanced Materials Group, School of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK |
| Abstract: | Field emission properties of partly Fe-filled carbon nanotubes (FCNTs) treated with different plasmas have been studied. Super low turn-on (0.24 V/μm) and threshold (0.6 V/μm) electric fields are identified upon nitrogen plasma treatment for 60 min. The field-enhancement factor, as high as 4.8 × 104, can be attributed to the plasma-induced structural defects and the unique characteristics of thin walled FCNTs with filled Fe nanowires. A model has been proposed to understand the effects of plasma on the CNTs. |
| Keywords: | A Nanostructures B Vapor deposition D Electrical properties |
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