Optimal Carbon Nanotube and Its Array as Emitters

摘要：

It has been widely accepted that the exceeding emission ability of CNT comes from its sharp tip and large aspect ratio. While Kim et al. reveals that the geometrical shape is not the real reason for CNTs emission ability. The emission current depends on the local density of states (DOS) at the tip carbon atoms under outer electric field. The integration of DOS stands for the emission ability of tip carbon atoms. Open ended CNT holds a much better tip atom emission ability than closed ended CNT. Anyway, closed ended CNTs tip atoms emission ablity increases much faster than open ended CNTs. The whole tubes emission ability is illustrated in Fig. 1.

作者: Wei Gu Wei Lei Xiaobing Zhang

作者单位: Department of electronics engineering, Southeast University,Nanjing, 210096, China

会议类型: 国际会议

会议名称: 2007亚洲显示国际会议（AD07）

会议地点: 上海

会议语种:英文

页码: 2142-2143

在线出版日期: 2007-03-12（万方平台首次上网日期，不代表论文的发表时间）