A molecular dynamics simulation study on resonance frequencies comparison of tunable carbon-nanotube resonators

Kang, Jeong Won; Kwon, Oh Kuen

doi:10.1016/j.apsusc.2011.05.026

Cited by 17 publications

(3 citation statements)

References 40 publications

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“…[ 353 ] also introduced a nanotube radio that consisted of an antenna and tuner by using a single walled CNT. However, nanoelectromechanical resonators based on these methods have also significant drawbacks because the nanotube was continuously shortened by the trimming process [ 97 , 357 ]. Although the model CNT tuner is difficult to implement by simple processes, it has the advantage that the frequency tuning can be easily obtained via controlling applied voltage without complex nano-positioning platform [ 357 ].…”

Section: Active Frequency Tuning Methodsmentioning

confidence: 99%

Tunable Micro- and Nanomechanical Resonators

Zhang

Peng

et al. 2015

Sensors

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Advances in micro- and nanofabrication technologies have enabled the development of novel micro- and nanomechanical resonators which have attracted significant attention due to their fascinating physical properties and growing potential applications. In this review, we have presented a brief overview of the resonance behavior and frequency tuning principles by varying either the mass or the stiffness of resonators. The progress in micro- and nanomechanical resonators using the tuning electrode, tuning fork, and suspended channel structures and made of graphene have been reviewed. We have also highlighted some major influencing factors such as large-amplitude effect, surface effect and fluid effect on the performances of resonators. More specifically, we have addressed the effects of axial stress/strain, residual surface stress and adsorption-induced surface stress on the sensing and detection applications and discussed the current challenges. We have significantly focused on the active and passive frequency tuning methods and techniques for micro- and nanomechanical resonator applications. On one hand, we have comprehensively evaluated the advantages and disadvantages of each strategy, including active methods such as electrothermal, electrostatic, piezoelectrical, dielectric, magnetomotive, photothermal, mode-coupling as well as tension-based tuning mechanisms, and passive techniques such as post-fabrication and post-packaging tuning processes. On the other hand, the tuning capability and challenges to integrate reliable and customizable frequency tuning methods have been addressed. We have additionally concluded with a discussion of important future directions for further tunable micro- and nanomechanical resonators.

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Section: Active Frequency Tuning Methodsmentioning

confidence: 99%

Tunable Micro- and Nanomechanical Resonators

Zhang

Peng

et al. 2015

Sensors

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“…Furthermore, studies have reported results on the vibration characteristics of DWCNT resonators using the continuum model method [15,16]. However, these studies used DWCNTs that have the same lengths of the inner and the outer CNTs, and in fact, resonators based on the CNTs can use DWCNTs with different CNT lengths [17,18]. However, no studies have yet been conducted for DWCNTs with different lengths of inner and outer CNTs [19 -21].…”

Section: Frequency Characteristicsmentioning

confidence: 99%

Frequency Characteristics of Double-Walled Carbon Nanotube Resonator with Different Length

Lee¹,

Kang²,

Kim³

2016

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In this paper, we have conducted classical molecular dynamics simulations for DWCNTs of various wall lengths to investigate their use as ultrahigh frequency nano-mechanical resonators. We sought to determine the variations in the frequency of these resonators according to changes in the DWCNT wall lengths. For a double-walled carbon nanotube resonator with a shorter inner nanotube, the shorter inner nanotube can be considered to be a flexible core, and thus, the length influences the fundamental frequency. In this paper, we analyze the variation in frequency of ultra-high frequency nano-mechnical resonators constructed from DWCNTs with different wall lengths.

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“…Стоит вопрос разделения и математического описания механических и физико-химических сторон этих процессов для понимания обоснованного способа управления ими и их компонентами. Известно, что разнообразие реологий многокомпонентных наноматериалов огромное [8][9][10][11][12][13][14][15][16]. Тем более важной является рассматриваемая задача.…”

Section: Introductionunclassified

Method of Investigation of Nanoparticles for Materials of Complex Rheologies

ZARETSKAYA,

BABESHKO,

TELYATNIKOV

et al. 2023

EBRC BSEC

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Аннотация. В более ранних работах авторов исследована проблема моделирования самоорганизации и самосборки наночастиц в фрагменты наноматериалов. Предполагалось, что наночастицы представляются материалом, описываемым уравнением Гельмгольца, для которого решалась соответствующая граничная задача. В том случае, если наночастица имеет носитель в форме полосы, проблема представления решения векторной граничной задачи, с помощью совокупности решений скалярных задач в полосе решается достаточно просто. Однако, в случае областей с кусочно-гладкой границей, это становится мало очевидным. В связи с этим, в работе показано, что такое разложение выполнимо для областей типа прямоугольного клина. С помощью решений в этой области можно строить асимптотические и приближенные решения для такой неклассической области как прямоугольник. В работе применен подход, опирающийся на новый универсальный метод моделирования.

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A molecular dynamics simulation study on resonance frequencies comparison of tunable carbon-nanotube resonators

Cited by 17 publications

References 40 publications

Tunable Micro- and Nanomechanical Resonators

Tunable Micro- and Nanomechanical Resonators

Frequency Characteristics of Double-Walled Carbon Nanotube Resonator with Different Length

Method of Investigation of Nanoparticles for Materials of Complex Rheologies

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