Facile Fabrication and Field Emission of Metal-Particle-Decorated Vertical N-Doped Carbon Nanotube/Graphene Hybrid Films

被引：64

作者：

Lee, Duck Hyun ^{[1
]}

Lee, Jin Ah ^{[1
]}

Lee, Won Joon ^{[1
]}

Choi, Dong Sung ^{[1
]}

Lee, Won Jong ^{[1
]}

Kim, Sang Ouk ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, 373-1 Guseong Dong, Taejon 305701, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 49期

关键词：

NANOTUBE ARRAYS; ELECTRON-EMISSION; GROWTH;

D O I：

10.1021/jp1077714

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：

In this study, vertical N-doped carbon nanotube (VNCNT) arrays were decorated with Au, Ru, or Mn nanoparticles, and the effects of the particles on the field-emission properties were investigated. Uniform catalyst nanoparticles were prepared by block copolymer lithography on a graphene film, and the VNCNT arrays were grown from the nanopatterned catalyst particles by plasma-enhanced chemical vapor deposition (PECVD). The surfaces of the VNCNT arrays were subsequently decorated with metal particles, and the vertical alignment of the NCNT arrays was maintained by high-vacuum annealing. The field-emission properties of the metal-particle-decorated VNCNT arrays varied according to the changes in the work-function values, with the Mn-VNCNT field emitter showing the best performance among the emitters tested. Our results revealed that the field-emission properties of VNCNT arrays may be tuned by decoration with metal particles and that particle decoration with a low-work-function material may be used to develop efficient field emitters.

引用

页码：21184 / 21189

页数：6

共 38 条

[1] Field emission from carbon nanotubes:: the first five years [J].

Bonard, JM ;

Kind, H ;

Stöckli, T ;

Nilsson, LA .

SOLID-STATE ELECTRONICS, 2001, 45 (06) :893-914

[2] VACUUM MICROELECTRONIC DEVICES [J].

BRODIE, I ;

SCHWOEBEL, PR .

PROCEEDINGS OF THE IEEE, 1994, 82 (07) :1006-1034

[3] High brightness electron beam from a multi-walled carbon nanotube [J].

de Jonge, N ;

Lamy, Y ;

Schoots, K ;

Oosterkamp, TH .

NATURE, 2002, 420 (6914) :393-395

[4] Electron field emitters based on carbon nanotube films [J].

deHeer, WA ;

Bonard, JM ;

Fauth, K ;

Chatelain, A ;

Forro, L ;

Ugarte, D .

ADVANCED MATERIALS, 1997, 9 (01) :87-&

[5] 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

[6] Large-scale synthesis and HRTEM analysis of single-walled B- and N-doped carbon nanotube bundles [J].

Golberg, D ;

Bando, Y ;

Bourgeois, L ;

Kurashima, K ;

Sato, T .

CARBON, 2000, 38 (14) :2017-2027

[7] ZnO-nanoparticle-coated carbon nanotubes demonstrating enhanced electron field-emission properties [J].

Green, Joshua M. ;

Dong, Lifeng ;

Gutu, Timothy ;

Jiao, Jun ;

Conley, John F., Jr. ;

Ono, Yoshi .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (09)

[8] Structural study of nitrogen-doping effects in bamboo-shaped multiwalled carbon nanotubes [J].

Jang, JW ;

Lee, CE ;

Lyu, SC ;

Lee, TJ ;

Lee, CJ .

APPLIED PHYSICS LETTERS, 2004, 84 (15) :2877-2879

[9] Universal block copolymer lithography for metals, semiconductors, ceramics, and polymers [J].

Jeong, Seong-Jun ;

Xia, Guodong ;

Kim, Bong Hoon ;

Shin, Dong Ok ;

Kwon, Se-Hun ;

Kang, Sang-Won ;

Kim, Sang Ouk .

ADVANCED MATERIALS, 2008, 20 (10) :1898-+

[10] Soft Graphoepitaxy of Block Copolymer Assembly with Disposable Photoresist Confinement [J].

Jeong, Seong-Jun ;

Kim, Ji Eun ;

Moon, Hyoung-Seok ;

Kim, Bong Hoon ;

Kim, Su Min ;

Kim, Jin Baek ;

Kim, Sang Ouk .

NANO LETTERS, 2009, 9 (06) :2300-2305

← 1 2 3 4 →