| 碳、碳氮和硼碳氮纳米管场发射性能的比较研究 |
| |
| 引用本文： | 李强,梁二军. 碳、碳氮和硼碳氮纳米管场发射性能的比较研究[J]. 物理学报, 2005, 54(12): 5931-5936 |
| |
| 作者姓名： | 李强 梁二军 |
| |
| 作者单位： | (1)郑州大学物理工程学院，材料物理教育部重点实验室，郑州 450052; (2)郑州大学物理工程学院，材料物理教育部重点实验室，郑州 450052;东华大学应用物理系，上海 200051 |
| |
| 基金项目： | 河南省高校创新人才基金(批准号：1999-125)和东华大学引进人才基金(批准号：2351038)资助的课题. |
| |
| 摘 要： | 采用高温热解法在860℃分别制备出了碳、碳氮和硼碳氮纳米管，提纯后利用丝网印刷工艺分别将它们制备成薄膜，并测试了它们的场发射性能.结果表明：碳纳米管、碳氮纳米管和硼碳氮纳米管薄膜的开启电场分别为2.22，1.1和4.4V/μm，当电场增加到5.7V/μm时，它们的电流密度分别达到1400，3000μA/cm2和小于50μA/cm2.碳和碳氮纳米管薄膜的场增强因子分别为10062和11521.可见，碳氮纳米管的场发射性能优于碳纳米管，而硼碳氮纳米管的场发射性能比前两者要差.解释了这三种纳米管场发射性能差别的原因.关键词：碳纳米管碳氮纳米管硼碳氮纳米管场发射
|
| 关 键 词： | 碳纳米管 碳氮纳米管 硼碳氮纳米管 场发射 |
| 文章编号： | 1000-3290/2005/54（12）/5931-06 |
| 收稿时间： | 2004-11-11 |
| 修稿时间： | 2005-07-08 |
Comparison of field emission of carbon, carbon nitride and boron carbon nitride nanotubes |
| |
| Li Qiang,Liang Er-Jun. Comparison of field emission of carbon, carbon nitride and boron carbon nitride nanotubes[J]. Acta Physica Sinica, 2005, 54(12): 5931-5936 |
| |
| Authors: | Li Qiang Liang Er-Jun |
| |
| Affiliation: | 1. Key Laboratory of Materials Physics of Ministry of Education, School of Physical Science and Engineering, Zhengzhou University, Zhengzhou 450052, China; 2.(Department of Applied Physics,Donghua University,Shanghai 200051, China |
| |
| Abstract: | Carbon,CNx and BCN nanotubes were synthesized by pyrolysis at 860℃ and purified. Thin films of the purified samples were fabricated by a screen-printing method. The field emission effect of these films was compared. It was found that the turn-on field was 2.22，1.1 and 4.4V/μm,and the current density at 5.7V/μm was 1400，3000 and ＜50μA/cm2 for C, CNx and BCN nanotubes,respectively. The electron field emission property of the CNx nanotubes was better than the carbon nanotubes while that of BCN nanotubes was the worst. The origin of the differences in field emission of these films was explained. |
| |
| Keywords: | carbon nanotubes CNx nanotubes BCN nanotubes field emission |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
|
点击此处可从《物理学报》下载免费的PDF全文 |
