Synthesis and field emission property of carbon nanotubes with sharp tips

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	Synthesis and field emission property of carbon nanotubes with sharp tips; Synthesis and field emission property of carbon nanotubes with sharp tips
	Y. L. Zhang; L. L. Zhang; P. X. Hou; H. Jiang; C. Liu; H. M. Cheng
	2011 ; 2011
发表期刊	New Carbon Materials ; New Carbon Materials
ISSN	1007-8827 ; 1007-8827
卷号	26 期号:1 页码:52-55
摘要	Carbon nanotubes (CNTs) with sharp tips were synthesized by a hydrogen arc discharge method. Three unusual morphologies, i.e., a cone-shaped tip, a suddenly-shrinking tip, and a pencil point-like tip were observed. These novel tip structures are considered to be related to the addition of a small amount of silicon powder in the raw material, which may introduce structural defects in the CNTs. The field emission property of the sharp-tip CNTs was investigated, and a low threshold electric field of 3.75 V/m, a high field emission current density of similar to 1.6x10(5) A/cm(2), and a good emission stability were demonstrated. The superior field emission performance of the CNTs can be attributed to their good crystallinity and unique tip structures.; Carbon nanotubes (CNTs) with sharp tips were synthesized by a hydrogen arc discharge method. Three unusual morphologies, i.e., a cone-shaped tip, a suddenly-shrinking tip, and a pencil point-like tip were observed. These novel tip structures are considered to be related to the addition of a small amount of silicon powder in the raw material, which may introduce structural defects in the CNTs. The field emission property of the sharp-tip CNTs was investigated, and a low threshold electric field of 3.75 V/m, a high field emission current density of similar to 1.6x10(5) A/cm(2), and a good emission stability were demonstrated. The superior field emission performance of the CNTs can be attributed to their good crystallinity and unique tip structures.
部门归属	[zhang yan-li; zhang li-li; hou peng-xiang; liu chang; cheng hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [jiang hua] aalto univ, dept appl phys, fin-02150 espoo, finland. [jiang hua] aalto univ, ctr new mat, fin-02150 espoo, finland.;liu, c (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;ylzhang@imr.ac.cn cliu@imr.ac.cn ; [zhang yan-li; zhang li-li; hou peng-xiang; liu chang; cheng hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [jiang hua] aalto univ, dept appl phys, fin-02150 espoo, finland. [jiang hua] aalto univ, ctr new mat, fin-02150 espoo, finland.;liu, c (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;ylzhang@imr.ac.cn cliu@imr.ac.cn
关键词	Carbon Nanotubes Carbon Nanotubes Sharp Tip Sharp Tip Field Emission Field Emission Electron Source Electron Source
URL	查看原文 ; 查看原文
WOS记录号	WOS:000288313600012 ; WOS:000288313600012
引用统计	被引频次：21[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/321006/30930
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. L. Zhang,L. L. Zhang,P. X. Hou,et al. Synthesis and field emission property of carbon nanotubes with sharp tips, Synthesis and field emission property of carbon nanotubes with sharp tips[J]. New Carbon Materials, New Carbon Materials,2011, 2011,26, 26(1):52-55, 52-55.
APA	Y. L. Zhang,L. L. Zhang,P. X. Hou,H. Jiang,C. Liu,&H. M. Cheng.(2011).Synthesis and field emission property of carbon nanotubes with sharp tips.New Carbon Materials,26(1),52-55.
MLA	Y. L. Zhang,et al."Synthesis and field emission property of carbon nanotubes with sharp tips".New Carbon Materials 26.1(2011):52-55.