Electron field emission from nanocarbons: A two-process model

被引：38

作者：

Altman, IS

Pikhitsa, PV

Choi, M ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Inst Adv Machinery & Design, Natl CRI Ctr Nano Particle Control, Seoul 151742, South Korea

[2] Griffith Univ, Sch Environm Engn, Brisbane, Qld 4111, Australia

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 07期

关键词：

D O I：

10.1063/1.1647284

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that the conventional consideration of the electron-field emission from nanocarbons cannot explain the experimentally observed results. We suggest a mechanism of the field emission occurrence from nanocarbons that can solve the existing puzzles. This mechanism implies two successive processes: (1) Tunneling through the low-energy barrier from the metallic region into the semiconducting region under the external macroscopic electric field and (2) tunneling through the high-energy barrier from the semiconducting region into a vacuum under the Coulomb field of an additional electron appearing in the first process. (C) 2004 American Institute of Physics.

引用

页码：1126 / 1128

页数：3

共 11 条

[1] Carbon nanotube films as electron field emitters [J].

Bonard, JM ;

Croci, M ;

Klinke, C ;

Kurt, R ;

Noury, O ;

Weiss, N .

CARBON, 2002, 40 (10) :1715-1728

[2] Fully sealed, high-brightness carbon-nanotube field-emission display [J].

Choi, WB ;

Chung, DS ;

Kang, JH ;

Kim, HY ;

Jin, YW ;

Han, IT ;

Lee, YH ;

Jung, JE ;

Lee, NS ;

Park, GS ;

Kim, JM .

APPLIED PHYSICS LETTERS, 1999, 75 (20) :3129-3131

[3] Unique characteristics of cold cathode carbon-nanotube-matrix field emitters [J].

Collins, PG ;

Zettl, A .

PHYSICAL REVIEW B, 1997, 55 (15) :9391-9399

[4]

CUMMINGS J, 2002, PHYS REV LETT, V88

[5]

DRESSELHAUS MS, 1996, SCI FULLERENES CARBO, P802

[6] Low-macroscopic-field electron emission from carbon films and other electrically nanostructured heterogeneous materials: hypotheses about emission mechanism [J].

Forbes, RG .

SOLID-STATE ELECTRONICS, 2001, 45 (06) :779-808

[7] Electron emission in intense electric fields [J].

Fowler, RH ;

Nordheim, L .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1928, 119 (781) :173-181

[8] Field emission properties of carbon nanotubes [J].

Gröning, O ;

Küttel, OM ;

Emmenegger, C ;

Gröning, P ;

Schlapbach, L .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2000, 18 (02) :665-678

[9] Field emission from well-aligned, patterned, carbon nanotube emitters [J].

Murakami, H ;

Hirakawa, M ;

Tanaka, C ;

Yamakawa, H .

APPLIED PHYSICS LETTERS, 2000, 76 (13) :1776-1778

[10]

Robertson J, 2003, IEICE T ELECTRON, VE86C, P787

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