Influence of working pressure on the field emission properties of carbon nanotubes

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	Influence of working pressure on the field emission properties of carbon nanotubes
	Y. Tong; W. C. Ren; Z. G. Zhao; C. Liu; H. M. Cheng
	2003
发表期刊	New Carbon Materials
ISSN	1007-8827
卷号	18 期号:2 页码:101-105
摘要	High-quality single-walled carbon nanotubes (SWNTs), double-walled carbon nanotubes (DWNTs), and multi-walled carbon nanotubes (MWNTs) with a mean diameter of 6 nm were employed for the measurements of their field emission performance in ultrahigh vacuum conditions.( UHV, 2.0 x 10(-7) Pa) and high vacuum (HV, 1.0 x 10(-4) Pa), respectively. It was found that all the carbon nanotubes (CNTs) showed good field emission stability in UHV, but the stability of SWNTs and DWNTs deteriorated remarkably in HV, while the MWNTs remained stable. On the other hand, it was found that increasing the working pressure within certain limits was in favor of the emission current increase of CNTs. By cycling the working pressure between 2.0 x 10(-7) Pa and 1.3 x 10(-4) Pa, lower vacuum limits of 6.0 x 10(-5) Pa, 1. 0 x 10(-4) Pa and 5.7 x 10(-4) Pa were proposed for the measurements and applications of SWNT, DWNT and MWNT field emitters, respectively.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. shenyang architectural & civil engn inst, sch mat sci & engn, shenyang 110015, peoples r china.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Electron Emitters
URL	查看原文
WOS记录号	WOS:000184581300004
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36030
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Tong,W. C. Ren,Z. G. Zhao,et al. Influence of working pressure on the field emission properties of carbon nanotubes[J]. New Carbon Materials,2003,18(2):101-105.
APA	Y. Tong,W. C. Ren,Z. G. Zhao,C. Liu,&H. M. Cheng.(2003).Influence of working pressure on the field emission properties of carbon nanotubes.New Carbon Materials,18(2),101-105.
MLA	Y. Tong,et al."Influence of working pressure on the field emission properties of carbon nanotubes".New Carbon Materials 18.2(2003):101-105.