Atomistic simulations of cantilevered single-walled carbon nanotubes as nanomechanical resonators

被引：0

作者：

Kosa, G. ^{[1
]}

Bercu, M. ^{[1
]}

Grecu, V. ^{[1
]}

机构：

[1] Univ Bucharest, Fac Phys, Magurele, Romania

来源：

OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2011年 / 5卷 / 10期

关键词：

Single-wall carbon nanotubes; Elastic wave propagation; Molecular dynamics; Nano-mechanical resonators; SENSORS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The properties related to mechanical wave propagation in carbon nanotubes support advanced applications as nano-mechanical resonators. This study deals with molecular dynamics simulations of cantilevered carbon nanotubes considered as mass detectors. The shift of the resonance frequency is calculated versus the attached extra-mass to carbon nanotubes model of 2200 atoms. We found that the modified Morse potential leads to the mass detection limit of 7.5 x 10(-22) g and to a high efficiency computation needed for large atomistic models. The influence on the frequency shift determined by the position of the extra-mass along the single-walled carbon nanotubes was taken into account.

引用

页码：1103 / 1106

页数：4

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