Field emission properties of carbon coated Si nanocone arrays on porous silicon

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	Field emission properties of carbon coated Si nanocone arrays on porous silicon
	Wang, Q ; Li, JJ ; Ma, YJ ; Bai, XD ; Wang, ZL ; Xu, P ; Shi, CY ; Quan, BG ; Yue, SL ; Gu, CZ
刊名	NANOTECHNOLOGY
	2005
卷号	16 期号:12 页码:2919
关键词	ELECTRON-EMISSION EMITTER ARRAYS LUMINESCENCE
ISSN号	0957-4484
通讯作者	Gu, CZ: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China.
中文摘要	Silicon nanocone arrays are formed on porous silicon substrates by plasma etching in a hot filament chemical vapour deposition system. The as-formed Si nanocones were characterized by means of scanning electron microscopy, hi-h resolution transmission electron microscopy, energy dispersive x-ray analysis, and Raman spectroscopy. The results indicate that the nanocone is composed of a silicon core coated with a thin amorphous carbon (a-C) layer produced by carbon-bearing plasma etching. Plasma etching is a key factor in the formation of the nanocone arrays, while re-condensation of evaporated silicon atoms on the tip of the as-etched cone also occurs. Field emission measurements show that the a-C coating can effectively enhance the field emission ability of the nanocone arrays due to the decrease of the surface work function from 4.15 to 2.37 eV.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/38161]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, Q,Li, JJ,Ma, YJ,et al. Field emission properties of carbon coated Si nanocone arrays on porous silicon[J]. NANOTECHNOLOGY,2005,16(12):2919.
APA	Wang, Q.,Li, JJ.,Ma, YJ.,Bai, XD.,Wang, ZL.,...&Gu, CZ.(2005).Field emission properties of carbon coated Si nanocone arrays on porous silicon.NANOTECHNOLOGY,16(12),2919.
MLA	Wang, Q,et al."Field emission properties of carbon coated Si nanocone arrays on porous silicon".NANOTECHNOLOGY 16.12(2005):2919.