Field emission property of gradiently nitrogen-doped carbon nanotubes

Er Yang Xu; Kun Lin Wang; Jin Quan Wei; Hong Wei Zhu; Zhen Li; Xu Chun Gui; De Hai Wu

Field emission property of gradiently nitrogen-doped carbon nanotubes

Er Yang Xu, Kun Lin Wang, Jin Quan Wei, Hong Wei Zhu, Zhen Li, Xu Chun Gui, De Hai Wu

Tsinghua University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Carbon nanotube (CNT) arrays, with diameter of 10-30 nm, doped with nitrogen were synthesized by thermal decomposition of xylene/pyridine/ferrocene at 800°C. SEM, TEM and Raman spectroscopy were used to characterize the as-produced sample. It is shown that the method produces a gradient of nitrogen concentration that modifies the CNTs from a hollow cylinder to a bamboo-shaped structure which contains a series of compartments whose lengths are gradually reduced as the nitrogen concentration increases. Field emission test on the as-grown nitrogen-doped CNTs suggests that they are good emitters with a turn-on and threshold field of 0.37 V/μm and 0.9 V/μm, respectively.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	32
Issue number	2
State	Published - Feb 2011
Externally published	Yes

Keywords

Carbon nanotubes
Field emission
Gradient nitrogen doping

Cite this

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title = "Field emission property of gradiently nitrogen-doped carbon nanotubes",

abstract = "Carbon nanotube (CNT) arrays, with diameter of 10-30 nm, doped with nitrogen were synthesized by thermal decomposition of xylene/pyridine/ferrocene at 800°C. SEM, TEM and Raman spectroscopy were used to characterize the as-produced sample. It is shown that the method produces a gradient of nitrogen concentration that modifies the CNTs from a hollow cylinder to a bamboo-shaped structure which contains a series of compartments whose lengths are gradually reduced as the nitrogen concentration increases. Field emission test on the as-grown nitrogen-doped CNTs suggests that they are good emitters with a turn-on and threshold field of 0.37 V/μm and 0.9 V/μm, respectively.",

keywords = "Carbon nanotubes, Field emission, Gradient nitrogen doping",

author = "Xu, {Er Yang} and Wang, {Kun Lin} and Wei, {Jin Quan} and Zhu, {Hong Wei} and Zhen Li and Gui, {Xu Chun} and Wu, {De Hai}",

year = "2011",

month = feb,

language = "英语",

volume = "32",

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journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

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T1 - Field emission property of gradiently nitrogen-doped carbon nanotubes

AU - Xu, Er Yang

AU - Wang, Kun Lin

AU - Wei, Jin Quan

AU - Zhu, Hong Wei

AU - Li, Zhen

AU - Gui, Xu Chun

AU - Wu, De Hai

PY - 2011/2

Y1 - 2011/2

N2 - Carbon nanotube (CNT) arrays, with diameter of 10-30 nm, doped with nitrogen were synthesized by thermal decomposition of xylene/pyridine/ferrocene at 800°C. SEM, TEM and Raman spectroscopy were used to characterize the as-produced sample. It is shown that the method produces a gradient of nitrogen concentration that modifies the CNTs from a hollow cylinder to a bamboo-shaped structure which contains a series of compartments whose lengths are gradually reduced as the nitrogen concentration increases. Field emission test on the as-grown nitrogen-doped CNTs suggests that they are good emitters with a turn-on and threshold field of 0.37 V/μm and 0.9 V/μm, respectively.

AB - Carbon nanotube (CNT) arrays, with diameter of 10-30 nm, doped with nitrogen were synthesized by thermal decomposition of xylene/pyridine/ferrocene at 800°C. SEM, TEM and Raman spectroscopy were used to characterize the as-produced sample. It is shown that the method produces a gradient of nitrogen concentration that modifies the CNTs from a hollow cylinder to a bamboo-shaped structure which contains a series of compartments whose lengths are gradually reduced as the nitrogen concentration increases. Field emission test on the as-grown nitrogen-doped CNTs suggests that they are good emitters with a turn-on and threshold field of 0.37 V/μm and 0.9 V/μm, respectively.

KW - Carbon nanotubes

KW - Field emission

KW - Gradient nitrogen doping

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M3 - 文章

AN - SCOPUS:79953106858

SN - 1009-6264

VL - 32

SP - 1

EP - 4

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 2

ER -

Field emission property of gradiently nitrogen-doped carbon nanotubes

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