Controlling Factors of the Electric Field at the Triple Junction
The metal-dielectric-vacuum junction is defned as the triple junction owned enhanced electric field, thus this special region is regarded as the location where primary electrons emission is favored. For electron emission, triple junction could affect both the flashover breakdown of insulators and th...
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| Published in | Chinese physics letters Vol. 31; no. 2; pp. 117 - 121 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.02.2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0256-307X 1741-3540 |
| DOI | 10.1088/0256-307X/31/2/027701 |
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| Abstract | The metal-dielectric-vacuum junction is defned as the triple junction owned enhanced electric field, thus this special region is regarded as the location where primary electrons emission is favored. For electron emission, triple junction could affect both the flashover breakdown of insulators and the electron emission property of ferroelectrie cathodes. In this study, we theoretically investigate the electric field enhancement in the triple-junction region. It is found that the key parameter to determine the field enhancement is the taper angle of the electrode and the relative permittivity of the dielectric. In addition, we first deduce the accurate expression of the electric field in this special region. The controlling parameters for determining the field enhancement are discussed in detail. We also discover the way to reduce the electric field of this region through simulation. The current analysis would be useful for both the electron emission enhancement and the issue of flashover breakdown. |
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| AbstractList | The metal-dielectric-vacuum junction is defned as the triple junction owned enhanced electric field, thus this special region is regarded as the location where primary electrons emission is favored. For electron emission, triple junction could affect both the flashover breakdown of insulators and the electron emission property of ferroelectrie cathodes. In this study, we theoretically investigate the electric field enhancement in the triple-junction region. It is found that the key parameter to determine the field enhancement is the taper angle of the electrode and the relative permittivity of the dielectric. In addition, we first deduce the accurate expression of the electric field in this special region. The controlling parameters for determining the field enhancement are discussed in detail. We also discover the way to reduce the electric field of this region through simulation. The current analysis would be useful for both the electron emission enhancement and the issue of flashover breakdown. The metal-dielectric-vacuum junction is defined as the triple junction owned enhanced electric held, thus this special region is regarded as the location where primary electrons emission is favored. For electron emission, triple junction could affect both the hashover breakdown of insulators and the electron emission property of ferroelectric cathodes. In this study, we theoretically investigate the electric held enhancement in the triple-junction region. It is found that the key parameter to determine the held enhancement is the taper angle of the electrode and the relative permittivity of the dielectric. In addition, we hrst deduce the accurate expression of the electric held in this special region. The controlling parameters for determining the held enhancement are discussed in detail. We also discover the way to reduce the electric held of this region through simulation. The current analysis would be useful for both the electron emission enhancement and the issue of hashover breakdown. |
| Author | 刘阳 黄旭东 冯玉军 贺红亮 |
| AuthorAffiliation | Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education ＆ International Center for Dielectric Research, Xi＇an Jiaotong University, Xi＇an 710049 National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 |
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| DocumentTitleAlternate | Controlling Factors of the Electric Field at the Triple Junction |
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| Notes | LIU Yang, HUANG Xu-Dong, FENG Yu-Jun, HE Hong-Liang（ 1Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education ＆ International Center for Dielectric Research, Xi＇an Jiaotong University, Xi＇an 710049 2National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900） 11-1959/O4 The metal-dielectric-vacuum junction is defned as the triple junction owned enhanced electric field, thus this special region is regarded as the location where primary electrons emission is favored. For electron emission, triple junction could affect both the flashover breakdown of insulators and the electron emission property of ferroelectrie cathodes. In this study, we theoretically investigate the electric field enhancement in the triple-junction region. It is found that the key parameter to determine the field enhancement is the taper angle of the electrode and the relative permittivity of the dielectric. In addition, we first deduce the accurate expression of the electric field in this special region. The controlling parameters for determining the field enhancement are discussed in detail. We also discover the way to reduce the electric field of this region through simulation. The current analysis would be useful for both the electron emission enhancement and the issue of flashover breakdown. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 11 13 14 15 18 19 Shur D (17) 1999; 32 1 2 3 4 5 6 Ansys Corporation (16) 7 8 9 Geis M W (12) 1997; 10 10 |
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| Snippet | The metal-dielectric-vacuum junction is defned as the triple junction owned enhanced electric field, thus this special region is regarded as the location where... The metal-dielectric-vacuum junction is defined as the triple junction owned enhanced electric held, thus this special region is regarded as the location where... |
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| SubjectTerms | Breakdown Dielectric constant Electrical junctions Electrodes Electron emission Ferroelectric materials Insulators Simulation 三联点 关键参数 可能影响 控制参数 控制因素 电场增强 电子发射特性 相对介电常数 |
| Title | Controlling Factors of the Electric Field at the Triple Junction |
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