Capacitive Spring Softening in Single-Walled Carbon Nanotube Nanoelectromechanical Resonators

Wu, Chung Chiang; Zhong, Zhiyong

doi:10.1021/nl1039549

Cited by 50 publications

(54 citation statements)

References 26 publications

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“…Figs8-11 [22] where only an unknown stable solution of larger amplitude has been obtained. Now we can confirm that the unknown stable solution is part of the superharmonic resonance.…”

Section: Effect Of Ac Voltagementioning

confidence: 99%

Nonlinear Dynamics of Carbon Nanotubes Under Large Electrostatic Force

Younis

2015

Volume 4: 20th Design for Manufacturing and the Life Cycle Conference; 9th International Conference on Micro- And Nanosystems

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Because of the inherent nonlinearities involving the behavior of CNTs when excited by electrostatic forces, modeling and simulating their behavior is challenging. The complicated form of the electrostatic force describing the interaction of their cylindrical shape, forming upper electrodes, to lower electrodes poises serious computational challenges. This presents an obstacle against applying and using several nonlinear dynamics tools typically used to analyze the behavior of complicated nonlinear systems undergoing large motion, such as shooting, continuation, and integrity analysis techniques. This works presents an attempt to resolve this issue. We present an investigation of the nonlinear dynamics of carbon nanotubes when actuated by large electrostatic forces. We study expanding the complicated form of the electrostatic force into enough number of terms of the Taylor series. Then, we utilize this form along with an Euler-Bernoulli beam model to study for the first time

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“…Figs8-11 [22] where only an unknown stable solution of larger amplitude has been obtained. Now we can confirm that the unknown stable solution is part of the superharmonic resonance.…”

Section: Effect Of Ac Voltagementioning

confidence: 99%

Nonlinear Dynamics of Carbon Nanotubes Under Large Electrostatic Force

Younis

2015

Volume 4: 20th Design for Manufacturing and the Life Cycle Conference; 9th International Conference on Micro- And Nanosystems

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“…Direct transfer was used by others to fabricate nanotube resonators [22] and bent nanotube devices suitable for observation of valley-spin blockade [23].…”

Section: Related Workmentioning

confidence: 99%

Suspended CNT-FET piezoresistive strain gauges: Chirality assignment and quantitative analysis

Muoth

Chikkadi

Liu

et al. 2013

2013 IEEE 26th International Conference on Micro Electro Mechanical Systems (MEMS)

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Carbon nanotubes can withstand large elastic deformation and show pronounced piezoresistive effects which make them promising candidates for low-power strain sensors in the large strain regime. Integration of individual suspended nanotubes into complex microelectromechanical devices, including gate structures, is still a challenge. Here, ultraclean carbon nanotubes spanning across actuated MEMS electrodes are operated as suspended Carbon Nanotube Field-Effect Transistors (CNT-FETs) under repeated variable strain up to 4.5%, thus acting as small-sized piezoresistive strain gauges whose gauge factor is electrostatically tuned by the gate. We present the first quantified electromechanical analysis of suspended CNT-FETs to uniaxial strain applied by on-chip micro actuators.

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“…nanothermometer [18][19][20][21][22][23]. Nanothermometer is used to measure temperatures of spaces surrounding the nanoscale devices [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

On the oscillatory frequency of the carbon nanotube-based nanothermometers

2017

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Abstract. Electromechanical nanothermometers are instruments that work on the basis of the van der Waals (vdW) potential energy and interaction force of their constituent carbon nanotubes (CNTs). The CNT-based nanothermometers have two di erent con gurations: telescope and shuttle con gurations. In this article, based on the Lennard-Jones potential function together with the continuum approximation, rst, the vdW potential energy and interaction force for a telescope con guration with nite CNTs are derived, which have not been obtained in the previous research studies. Thereafter, by employing the interaction force, the equation of motion between constituent CNTs is solved. Subsequently, a new semi-analytical expression is obtained which enables one to precisely evaluate the oscillation frequency. By employing the given formulae, e ects of di erent system parameters on the vdW interactions and oscillation frequency are shown.

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Capacitive Spring Softening in Single-Walled Carbon Nanotube Nanoelectromechanical Resonators

Cited by 50 publications

References 26 publications

Nonlinear Dynamics of Carbon Nanotubes Under Large Electrostatic Force

Nonlinear Dynamics of Carbon Nanotubes Under Large Electrostatic Force

Suspended CNT-FET piezoresistive strain gauges: Chirality assignment and quantitative analysis

On the oscillatory frequency of the carbon nanotube-based nanothermometers

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