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DC electric field assisted alignment of carbon nanotubes on metal electrodes

被引：68
作者：
Kumar, MS
Lee, SH
Kim, TY
Kim, TH
Song, SM
Yang, JW
Nahm, KS
Suh, EK [1 ]
机构：
[1] Chonnam Natl Univ, Semicond Phys Res Ctr, Chonju 561756, South Korea
[2] Chonnam Natl Univ, Dept Semicond Sci & Technol, Chonju 561756, South Korea
[3] Chonbuk Natl Univ, Sch Chem Engn & Technol, Surface React Engn Lab, Chonju 561756, South Korea
来源：
SOLID-STATE ELECTRONICS | 2003年 / 47卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
SWCNT; DC electric field; alignment; FE-SEM;
D O I：
10.1016/S0038-1101(03)00258-2
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Single walled carbon nanotubes (SWCNTs) have been aligned across the metal electrodes using a dc electric field. Effects of electric field strength, nanotube concentration in the suspension, and the solvents used for CNT dispersion were examined on the aligning nature of nanotubes. An improved dispersion of CNTs has been found in dimethylformamide solution compared to ethanol. CNTs mostly moved towards anode for the applied electric field indicating the negative charge of the nanotubes. Experimental results exhibit the possibilities of precise positioning of nanotubes on pre-patterned electrodes by controlling the magnitude of electric field as well as the concentration of CNT suspension. (C) 2003 Elsevier Ltd. All rights reserved.
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收藏
页码：2075 / 2080
页数：6
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