| 碳纳米管的长径比对场发射特性的影响 |
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| 引用本文： | 黄国伟,陈霞.碳纳米管的长径比对场发射特性的影响[J].湛江师范学院学报,2007,28(3):42-47. |
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| 作者姓名： | 黄国伟 陈霞 |
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| 作者单位： | 湛江师范学院,物理科学与技术学院,广东,湛江,524048 |
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| 基金项目： | 湛江师范学院校科研和教改项目 |
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| 摘 要： | 考虑碳纳米管的尺寸,特别是碳纳米管的半径对表面电荷分布的影响,我们采用固定碳纳米管长度,半径在一定范围内连续性取值,通过数值计算不同长径比的碳纳米管尖端的电荷密度和电场强度,与取固定长度和固定半径的其他文献的计算结果比较,在相应长度、半径的点上保持一致,得到的结论更具普遍意义.
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| 关 键 词： | 碳纳米管 表面电荷分布 长径比 尖端电场 场发射特性 |
| 文章编号： | 1006-4702（2007）03-0042-06 |
| 修稿时间： | 2007-05-15 |
Effects of Length-Radius Ratio of Carbon Nanotube on Field Emission |
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| HUANG Guo-wei,CHEN Xia.Effects of Length-Radius Ratio of Carbon Nanotube on Field Emission[J].Journal of Zhanjiang Normal College,2007,28(3):42-47. |
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| Authors: | HUANG Guo-wei CHEN Xia |
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| Institution: | School of Physics, Zhanjiang Normal College, Zhanjiang, Guangdong 524048, China |
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| Abstract: | Considering the effects of the geometrical figure,especially the radius,of the nanotube on the surface charge,we used a fixed carbon nanotube length,with its radius changing in a certain range,to compute the charge density and field distribution at the top of the tubes of different radii.Compared with the results of other studies with fixed length and radius,our measure led to more significant conclusion at corresponding length and radius. |
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| Keywords: | carbon nanotube surface charge distribution aspect ratio tip electric field field emission |
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