Self-assembly of carbon nanotubes and boron nitride nanotubes into coaxial structures

被引：10

作者：

Kuang, Y. D. ^{[1
,2
]}

Shi, S. Q. ^{[1
]}

Chan, P. K. L. ^{[1
]}

Chen, C. Y. ^{[2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Civil Engn & Mech, Wuhan 430074, Hubei, Peoples R China

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2010年 / 50卷 / 02期

关键词：

Carbon nanotubes and boron nitride nanotubes; Self-assembly; Molecular dynamics simulations; Polarization; Nanodevices; MOLECULAR-DYNAMICS; ELASTIC-MODULUS; WATER; LAYERS;

D O I：

10.1016/j.commatsci.2010.09.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Coaxial carbon nanotube/boron nitride nanotube (CNT/BNNT) multi-walled structures are ideal components in nanoelectronic systems. Our molecular dynamics simulations show that separate CNTs and BNNTs can self-assemble into stable coaxial structures in water under appropriate conditions. In case study three types of representative coaxial structures: (5, 5) CNT/(10, 10) BNNT, (5,5) BNNT/(10, 10) CNT and (5, 5) BNNT/(10, 10) BNNT are obtained. Simulation results also reveal that the self-assembly time between two separate BNNTs is increased remarkably due to the polarization of BNNTs in water. The mechanism of self-assembly among these tubes is demonstrated in detail. Further, coaxial (10, 10) BNNT/(10, 10) CNT/(15, 15) BNNT nanoheterojunctions are achieved for potential application in nanoelectronic systems. The present work shows the feasibility to fabricate the coaxial nanodevices such as insulating high-strength cables, high frequency oscillators and nanojunctions using self-assembly approach. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：645 / 650

页数：6

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