| Theoretical Study on Field Emission Patterns of the Nanotube |
| |
| 作者姓名： | HUChen-guo WANGWan-lu LIAOKe-jun WANGHao XIAOJin-long |
| |
| 作者单位： | DepartmentofAppliedPhysics,ChongqingUniversity,Chongqing400030,CHN |
| |
| 基金项目： | Applied Basic Research Project of Chongqing City，重庆大学校科研和教改项目 |
| |
| 摘 要： | The distributions of the electrical potential and field have been given from Maxwell‘s field equations. The results show that there exists very strong electric field intensity on the tip of the nanotube,and the intensity decays rapidly as the distance increases away from the tip. The strong electric field intensity on the tip is consistent with the low threshold voltage under the electric field emission from a nanotube. The calculation also revealed that the higher the aspect ratio is, the stronger the electric field intensity on the tip of the nanotube will be,if the distance and voltage between the cathode and the anode do not change, which predicts the lower threshold voltage under the field emission.
|
| 关 键 词： | 碳纳米管 场致发射 麦克斯韦电磁场等效 SWNT MWNT |
| 收稿时间： | 2003/5/12 |
Theoretical Study on Field Emission Patterns of the Nanotube |
| |
| HUChen-guo WANGWan-lu LIAOKe-jun WANGHao XIAOJin-long.Theoretical Study on Field Emission Patterns of the Nanotube[J].Semiconductor Photonics and Technology,2003,9(4):238-241. |
| |
| Authors: | HU Chen-guo WANG Wan-lu LIAO Ke-jun WANG Hao XIAO JIN-LONG |
| |
| Abstract: | The distributions of the electrical potential and field have been given from Maxwell's field equations.The results show that there exists very strong electric field intensity on the tip of the nanotube,and the intensity decays rapidly as the distance increases away from the tip. The strong electric field intensity on the tip is consistent with the low threshold voltage under the electric field emission from a nanotube. The calculation also revealed that the higher the aspect ratio is,the stronger the electric field intensity on the tip of the nanotube will be,if the distance and voltage between the cathode and the anode do not change, which predicts the lower threshold voltage under the field emission. |
| |
| Keywords: | Nanotube Field emission Maxwell's field equation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
