Work function of single-walled carbon nanotubes determined by field   emission microscopy

doi:10.1007/s003390201403

CORC > 北京大学 > 化学与分子工程学院

	Work function of single-walled carbon nanotubes determined by field emission microscopy
	Sun, JP ; Zhang, ZX ; Hou, SM ; Zhang, GM ; Gu, ZN ; Zhao, XY ; Liu, WM ; Xue, ZQ
刊名	applied physics a materials science processing
	2002
关键词	ELECTRONIC-STRUCTURE FILMS EMITTERS STATES
DOI	10.1007/s003390201403
英文摘要	The field emission characteristics of a single micro-bundle of single-walled carbon nanotubes (SWCNTs) were investigated using field emission microscopy (FEM). Fowler-Nordheim plots revealed that the work function of the SWCNTs was reduced with increasing heating temperature, and reached a minimum value around 1000 degreesC, assuming that the beta factor was constant during the heating process. Field emission patterns also demonstrated fine structures that were believed to be images of the cap of a SWCNT, which was in a clean state. The radius of the SWCNT micro-bundle was measured by transmission electron microscopy (TEM), and the beta factor was calculated using two empirical formulae. Then, the work function of the SWCNT was determined from the slope, K, of its Fowler-Nordheim plot. The work function values were Phi(1) = 4.76 eV and Phi(2) = 4.88 eV, respectively.; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 50; ARTICLE; 4; 479-483; 75
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/208050]
专题	化学与分子工程学院信息科学技术学院
推荐引用方式 GB/T 7714	Sun, JP,Zhang, ZX,Hou, SM,et al. Work function of single-walled carbon nanotubes determined by field emission microscopy[J]. applied physics a materials science processing,2002.
APA	Sun, JP.,Zhang, ZX.,Hou, SM.,Zhang, GM.,Gu, ZN.,...&Xue, ZQ.(2002).Work function of single-walled carbon nanotubes determined by field emission microscopy.applied physics a materials science processing.
MLA	Sun, JP,et al."Work function of single-walled carbon nanotubes determined by field emission microscopy".applied physics a materials science processing (2002).