Abstract：The work function Single-Walled Carbon NanoTubes (SWCNTs) is investigated using Field Emission Microscopy (FEM). Since electron states of absorbed atoms and molecules dominate field emission from SWCNTs at room temperature, any measure prior to desorption could not obtain the work function of clean SWCNTs. So field emission patterns of clean SWCNTs are firstly achieved after SWCNTs are treated at high temperatures, then I-V behaviors of clean SWCNTs are measured. The radius of the bundle SWCNTs is known from its image of Transmission Electron Microscopy (TEM) so that the ratio factor β could be calculated using 3 different formulas, hence the work function of clean SWCNTs is determined from the slope of Fowler-Nordheim plot.
张兆祥; 孙建平; 侯士敏; 赵兴钰; 施祖进; 顾镇南; 刘惟敏; 薛增泉. 用场发射显微镜测量单壁碳纳米管的逸出功[J]. 电子与信息学报, 2002, 24(11): 1708-1713 .
Zhang Zhaoxiang①; Sun Jianping①; Hou Shimin①; Zhao Xingyu①; Shi Zujin②; Gu Zhennan②; Liu Weimin①; Xue Zengquan①. Field emission microscopy study of the work function of single-walled carbon nanotubes. , 2002, 24(11): 1708-1713 .
2002, Vol. 24 
