Field emission of carbon nanotube array with normal-gate cold cathode

doi:10.1088/1674-1056/19/5/057201

中国物理B ›› 2010, Vol. 19 ›› Issue (5): 57201-057201.doi: 10.1088/1674-1056/19/5/057201

Field emission of carbon nanotube array with normal-gate cold cathode

慕晓文¹, 乔宪武¹, 陈小婷¹, 王军红¹, 戴剑锋²

(1)School of Science, Lanzhou University of Technology, Lanzhou 730050, China; (2)State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;School of Science, Lanzhou University of Technology, Lanzhou 730050, China

收稿日期:2009-11-06 修回日期:2009-12-01 出版日期:2010-05-15 发布日期:2010-05-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.~50873047), and the Foundation of Gansu Provincial Education Department, China (Grant No.~0603-02).

Field emission of carbon nanotube array with normal-gate cold cathode

Dai Jian-Feng(戴剑锋)^a)b)^†, Mu Xiao-Wen(慕晓文)^b), Qiao Xian-Wu(乔宪武)^b), Chen Xiao-Xing(陈小婷)^b), and Wang Jun-Hong(王军红)^b)

^a State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; ^b School of Science, Lanzhou University of Technology, Lanzhou 730050, China

Received:2009-11-06 Revised:2009-12-01 Online:2010-05-15 Published:2010-05-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.~50873047), and the Foundation of Gansu Provincial Education Department, China (Grant No.~0603-02).

摘要/Abstract

摘要： A hexagon pitch carbon nanotube (CNT) array vertical to the normal gate of cold cathode field emission displayer (FED) is simulated by solving the Laplace equation. The calculated results show that the normal gate causes the electric field around the CNT tops to be concentrated and emission electron beam become a column. The field enhancement factor and the emission current intensity step up greatly compared with those of diode structure. Emission current density increases rapidly with the decrease of normal-gate aperture. The gate voltage exerts a critical influence on the emission current.

Abstract: A hexagon pitch carbon nanotube (CNT) array vertical to the normal gate of cold cathode field emission displayer (FED) is simulated by solving the Laplace equation. The calculated results show that the normal gate causes the electric field around the CNT tops to be concentrated and emission electron beam become a column. The field enhancement factor and the emission current intensity step up greatly compared with those of diode structure. Emission current density increases rapidly with the decrease of normal-gate aperture. The gate voltage exerts a critical influence on the emission current.

Key words: field emission, hexagon pitch carbon nanotube (CNT) array, emission current density, field enhancement factor

中图分类号: (Field emitters and arrays, cold electron emitters)

85.45.Db

85.45.Fd (Field emission displays (FEDs)) 85.60.Ha (Photomultipliers; phototubes and photocathodes) 85.35.Kt (Nanotube devices) 02.30.Jr (Partial differential equations)

戴剑锋, 慕晓文, 乔宪武, 陈小婷, 王军红. Field emission of carbon nanotube array with normal-gate cold cathode[J]. 中国物理B, 2010, 19(5): 57201-057201.

Dai Jian-Feng(戴剑锋), Mu Xiao-Wen(慕晓文), Qiao Xian-Wu(乔宪武), Chen Xiao-Xing(陈小婷), and Wang Jun-Hong(王军红). Field emission of carbon nanotube array with normal-gate cold cathode[J]. Chin. Phys. B, 2010, 19(5): 57201-057201.

参考文献 24

[1]	de Heer W A, Chatelain A and Ugrate D 1995 Science 270 1179
[2]	Jonge N D, Lamy Y and Schoots K 2002 Nature 420 393
[3]	Wang Q H, Corrigan T D and Dai J Y 1997 Appl. Phys. Lett. 70 3308
[4]	Wang Y M, Kang W P and Davidson J L 2005 Diam. Relat. Mater. 14 2078
[5]	Jung J E, Jin Y W and Choi J H 2002 Phys. Rev. B 323 71
[6]	Kim J M, Choi W B and Lee N S 2000 Diam. Relat. Mater. 9 1184
[7]	Kimd, Lim S H and Guilley A J 2008 Thin Solid Films 516 706
[8]	Lobo T, Figueira M S and Latgee A 2006 Physica B 384 113
[9]	Luo M, Wang X Q, Ge H L, Wang M, Xu Y B, Chen Q, Li L P, Chen L, Guan G F, Xia J and Jiang F 2006 Acta Phys. Sin. 55 6063 (in Chinese)
[10]	B uldum A and Lu J P 2003 Appl. Surf. Sci. 219 123
[11]	Dai J F, Zhang C, Wang Q, Li W X and Yao D 2008 New Carbon Materials (Chinese) 23(3) 201
[12]	Wang X Q, Wang M and Li Z H, Yang Bg, Wang F F, He P M and Xu Y B 2005 Ultramicroscopy 102 181
[13]	Wang X Q, Wang M and Ge H L 2005 Physica E 30 101
[14]	Filip V, Nicolaescu D and Tanemura M 2001 Ultramicroscopy 89 39
[15]	Glukhova O E, Zhbanov A I and Torgashov I G 2003 Appl. Surf. Sci. 215 149
[16]	Wang M, Shang X F and Li Z H 2006 Acta Phys. Sin. 55 797 (in Chinese)
[17]	Shunjiro Fujii, Shin-ichi Honda and Hideyasu Kawai 2008 Diam. Relat. Mater. 17 556
[18]	Li Y M and Ta-Ching Yeh 2008 Comput. Electron. 7 332
[19]	Lei D, Zeng L Y, Xia Y X, Chen S, Liang J Q and Wang W B 2007 Acta Phys. Sin. 56 6616
[20]	Wang X Q, Li L, Chu N J, Jin H X and Ge H L 2008 Acta Phys. Sin. 57 7173
[21]	Zhong X F, Yi H C and Wang B P 2004 Journal of Southeast University 34 22
[22]	Lu Z L, Wang C Q and Jia Y 2007 Chin. Phys. 16 843
[23]	Roy Mahapatra D, Sinha N, Yeow J T W and Melnik R 2008 Appl. Surf. Sci. 255 1959
[24]	Chen G H, Wang W L, Peng J, He C S, Deng S Z, Xu N S and Li Z B 2007 Phys. Rev. B 76 195412

Field emission of carbon nanotube array with normal-gate cold cathode

Field emission of carbon nanotube array with normal-gate cold cathode

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