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Fabrication of a three-dimensional complex carbon nanoneedle from carbon nanowalls |
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| Authors: | Hong-Xing Wang Nan Jiang Akio Hiraki |
| Affiliation: | a Sekitechnotron Corp., 5-6-30, Kiba, Koto-ku, Tokyo 135-0042 Japan b Kochi University of Technology, Tosayamada, Kochi, Japan c Xi’an Jiaotong University, No. 28, West Xianning Road, Xi’an, China |
| Abstract: | A three-dimensional complex carbon nanoneedle has been fabricated from carbon nanowalls by a direct current plasma chemical vapor deposition system. Sample grown on stainless wire substrate pretreated with the mixing powders of diamond and molybdenum exhibits novel three-dimensional complex nanostructure, the center of which is a carbon nanoneedle, and many carbon nanowalls growing from the needle. The density of unique nanostructure emitters was about 5 × 107/cm2. The I-V characteristic addressed an emission current density of 314 mA/cm2 at the electric field of 2.5 V/μm. |
| Keywords: | CVD Nucleation Carbon nanowall Carbon nanoneeedle Field emission |
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