Curious aligned growth of carbon nanotubes under applied electric field

被引:38
作者
Srivastava, A
Srivastava, AK
Srivastava, ON [1 ]
机构
[1] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India
[2] Ctr Adv Technol, Indore, Madhya Pradesh, India
关键词
carbon nanotubes; arc discharge; transmission electron microscopy (TEM); scanning electron microscopy (SEM); electrical properties;
D O I
10.1016/S0008-6223(00)00105-6
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 the present investigation, we have investigated the effect of external voltage (field) on the alignment of graphitic nanotubes as a result of applied electric field. The details of alignment effect embodying variation of applied electric field corresponding to applied voltage between 2 to 10 volts, the variation of length and diameter of the tubes have been studied. It has been found that bath the degree of alignment and optimum length (similar to 12 mum). diameter (similar to 60 nm) of the tubes are obtained for the applied electrical field corresponding to 6 volts. The applied electrical field for 6 volts has been estimated to be approximate to 1889 volts cm(-1). A feasible model fur the: effect of tube alignment due to the external electric field has been described and discussed. (C) 2001 Published by Elsevier Science Ltd.
引用
收藏
页码:201 / 206
页数:6
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