Nitrogen doping effects on the structure behavior and the field emission performance of double-walled carbon nanotubes

被引：90

作者：

Chun, Kyoung-Yong ^{[1
]}

Lee, Heon Sang ^{[2
]}

Lee, Cheol Jin ^{[1
]}

机构：

[1] Korea Univ, Sch Elect Engn, Seoul 136701, South Korea

[2] LG Chem Ltd, Ctr Technol, Taejon 305343, South Korea

来源：

CARBON | 2009年 / 47卷 / 01期

关键词：

CHEMICAL-VAPOR-DEPOSITION; ELECTRON-EMISSION; HYDROGEN STORAGE; TEMPERATURE; BORON; GROWTH; FILMS; ATOMS;

D O I：

10.1016/j.carbon.2008.09.047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nitrogen (N) doping effect and field emission properties of double-walled carbon nanotubes (DWCNTs) were investigated. Diameter transformation and defect generation in the N-doped DWCNTs mainly depend on the amount of nitrogen employed. By applying N-doping into DWCNTs (1.5 N at.%), the average diameters of the DWCNTs were increased from 1.7 to 2.4 nm, and the crystallinity (I-G/I-D) was decreased from 13.5 to 5. Field emission properties were enhanced by the N doping into DWCNTs. The turn-on field, corresponding to a current density of 0.1 mu A/cm(2), was about 0.9V/mu m for the N-doped DWCNTs (1.5 N at.%). The field enhancement factor of the N-doped DWCNTs was higher than that of the undoped DWCNTs. It was found that the field emission properties were controlled by pyridine-like N in the graphite due to N-doping. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：169 / 177

页数：9

共 57 条

[31] Carbon nanotube films prepared by thermal chemical vapor deposition at low temperature for field emission applications [J].

Li, YJ ;

Sun, Z ;

Lau, SP ;

Chen, GY ;

Tay, BK .

APPLIED PHYSICS LETTERS, 2001, 79 (11) :1670-1672

[32] Electronic and optical properties of nitrogen-doped multiwalled carbon nanotubes [J].

Lim, SH ;

Elim, HI ;

Gao, XY ;

Wee, ATS ;

Ji, W ;

Lee, JY ;

Lin, J .

PHYSICAL REVIEW B, 2006, 73 (04)

[33] Temperature and flow rate of NH3 effects on nitrogen content and doping environments of carbon nanotubes grown by injection CVD method [J].

Liu, JW ;

Webster, S ;

Carroll, DL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (33) :15769-15774

[34] Electron emission and structural characterization of a rope of single-walled carbon nanotubes [J].

Lovall, D ;

Buss, M ;

Graugnard, E ;

Andres, RP ;

Reifenberger, R .

PHYSICAL REVIEW B, 2000, 61 (08) :5683-5691

[35] Structure, composition, and chemical reactivity of carbon nanotubes by selective nitrogen doping [J].

Maldonado, Stephen ;

Morin, Stephen ;

Stevenson, Keith J. .

CARBON, 2006, 44 (08) :1429-1437

[36]

MANASHI N, 2000, CHEM PHYS LETT, V322, P333

[37] Electronic and field emission properties of boron nitride/carbon nanotube superlattices [J].

Meunier, V ;

Roland, C ;

Bernholc, J ;

Nardelli, MB .

APPLIED PHYSICS LETTERS, 2002, 81 (01) :46-48

[38] Chemically active substitutional nitrogen impurity in carbon nanotubes -: art. no. 105502 [J].

Nevidomskyy, AH ;

Csányi, G ;

Payne, MC .

PHYSICAL REVIEW LETTERS, 2003, 91 (10)

[39] Origin of N 1s spectrum in amorphous carbon nitride obtained by X-ray photoelectron spectroscopy [J].

Ohta, R ;

Lee, KH ;

Saito, N ;

Inoue, Y ;

Sugimura, H ;

Takai, O .

THIN SOLID FILMS, 2003, 434 (1-2) :296-302

[40] Nitrogen- and boron-doped double-walled carbon nanotubes [J].

Panchalkarla, L. S. ;

Govindaraj, A. ;

Rao, C. N. R. .

ACS NANO, 2007, 1 (05) :494-500

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