Control of growth orientation for carbon nanotubes

被引:59
作者
Lee, KH [1 ]
Cho, JM [1 ]
Sigmund, W [1 ]
机构
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
关键词
D O I
10.1063/1.1535269
中图分类号
O59 [应用物理学];
学科分类号
摘要
Laterally aligned carbon nanotubes were synthesized on substrates over iron nanoparticles using chemical vapor deposition. In addition, aligned carbon nanotubes grown vertically and with tilt angle to the substrates were produced, which means that it is possible to grow aligned carbon nanotubes at any angle relative to the substrate. The growth direction of the carbon nanotubes was controlled by a magnetic field that is applied in the process of adhering catalyst particles on silicon oxide substrates from dispersion. The ferromagnetic property of the iron nanoparticles fixes them in a defined orientation under magnetic field, which results in aligned growth of the carbon nanotubes. These results indicate that carbon nanotubes preferentially grow from certain facets of the catalyst particles, suggesting a crucial clue in investigating the growth mechanism of carbon nanotubes. The laterally aligned carbon nanotubes could make it possible to integrate them in nanoelectronic devices, such as a channel for field-effect transistors. (C) 2003 American Institute of Physics.
引用
收藏
页码:448 / 450
页数:3
相关论文
共 9 条
[1]   Directed growth of free-standingsingle-walled carbon nanotubes [J].
Cassell, AM ;
Franklin, NR ;
Tombler, TW ;
Chan, EM ;
Han, J ;
Dai, HJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (34) :7975-7976
[2]   Engineering carbon nanotubes and nanotube circuits using electrical breakdown [J].
Collins, PC ;
Arnold, MS ;
Avouris, P .
SCIENCE, 2001, 292 (5517) :706-709
[3]   Self-oriented regular arrays of carbon nanotubes and their field emission properties [J].
Fan, SS ;
Chapline, MG ;
Franklin, NR ;
Tombler, TW ;
Cassell, AM ;
Dai, HJ .
SCIENCE, 1999, 283 (5401) :512-514
[4]   Synthesis of carbon nanotube bridges on patterned silicon wafers by selective lateral growth [J].
Han, YS ;
Shin, JK ;
Kim, ST .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (11) :5731-5734
[5]   Synthesis of individual single-walled carbon nanotubes on patterned silicon wafers [J].
Kong, J ;
Soh, HT ;
Cassell, AM ;
Quate, CF ;
Dai, HJ .
NATURE, 1998, 395 (6705) :878-881
[6]   Single- and multi-wall carbon nanotube field-effect transistors [J].
Martel, R ;
Schmidt, T ;
Shea, HR ;
Hertel, T ;
Avouris, P .
APPLIED PHYSICS LETTERS, 1998, 73 (17) :2447-2449
[7]   Synthesis and magnetic studies of uniform iron nanorods and nanospheres [J].
Park, SJ ;
Kim, S ;
Lee, S ;
Khim, ZG ;
Char, K ;
Hyeon, T .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (35) :8581-8582
[8]   Synthesis of large arrays of well-aligned carbon nanotubes on glass [J].
Ren, ZF ;
Huang, ZP ;
Xu, JW ;
Wang, JH ;
Bush, P ;
Siegal, MP ;
Provencio, PN .
SCIENCE, 1998, 282 (5391) :1105-1107
[9]   Room-temperature transistor based on a single carbon nanotube [J].
Tans, SJ ;
Verschueren, ARM ;
Dekker, C .
NATURE, 1998, 393 (6680) :49-52