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Study on the vacuum breakdown in field emission of a nest array of multi-walled carbon nanotube/silicon nanoporous pillar array |
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| Authors: | Wei Fen Jiang Long Yu Li Shun Hua Xiao Yong Fen Dong Xin Jian Li |
| Affiliation: | aDepartment of Mathematics and Information Science, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011, China bDepartment of Physics and Laboratory of Materials Physics, Zhengzhou University, Zhengzhou 450052, China |
| Abstract: | A composite structure, a nest array of multi-walled carbon nanotubes/silicon nanoporous pillar array (NACNT/Si-NPA), with good field emission properties, was synthesized through growing CNT on Si-NPA by thermal chemical vapor deposition. In order to make full use of its good field emission properties, the vacuum breakdown behavior accompanied with field emission from NACNT/Si-NPA was investigated. The results revealed that a positive feedback of field emission and resulted Joule heat ignited a small portion of protruding emitters, which caused spark discharge, destroyed the anode and generated a large amount of heat. The thermal runaway ultimately resulted in the destruction of substrate and vacuum breakdown. |
| Keywords: | A nest array of multi-walled carbon nanotube Silicon nanoporous pillar array Field emission Vacuum breakdown |
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