Beat vibration of hybrid boron nitride-carbon nanotubes – A new avenue to atomic-scale mass sensing

Zhang, Jin; Wang, Chengyuan

doi:10.1016/j.commatsci.2016.11.014

Cited by 21 publications

(8 citation statements)

References 45 publications

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“…The two adjacent peaks in the spectrum indicate the vibrations in two orthogonal directions [43], as plotted in Figure 6(c), which are denoted as the elementary directions. Synthetizing the two vibrations results in the beat phenomenon [44].…”

Section: Natural Frequency Decrease Caused By the Impurity Aumentioning

confidence: 99%

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Vibrational Characteristics of Au‐Doped Si Nanowires: A Molecular Dynamics Study with a Modified Embedded Atom Method Potential Developed for Si‐H‐Au Systems

Liu

Zhang

Wang

et al. 2022

Journal of Nanomaterials

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Silicon nanowires (SiNWs) are promising structures as resonators for applications in ultrasensitive force and mass transducers. In the present work, large-scale molecular dynamics simulations were conducted to explore the effect of gold (Au), a commonly used catalyst, on the vibrational properties of [1 0 0] and [1 1 0] SiNWs. The force field was established using the modified embedded atom method (MEAM) formalism. The parameterization focused on the properties of the hydrogen-covered SiNWs doped with Au, involving the formation energy as well as the structural and vibrational characteristics. The vibrational characteristics of a clamped-clamped SiNW were examined through excitation using a sinusoidal velocity field after energy minimization and thermal equilibration. Different doping concentrations and distributions can significantly change the frequency response, quality factor Q , and beat phenomenon. The natural frequency f 0 decreased with increasing Au concentration, whereas the effect of the impurity distribution on f 0 was negligible. Furthermore, Q was sensitive to the Au concentration and distribution, and the increased concentration led to an overall increment in Q , accompanied by considerably increased scattering. Besides, the beat period of [1 1 0] SiNWs showed a strong positive correlation with the concentration. The vibration along the elementary axes cannot produce the beat phenomenon. Deflection of the elementary axes in a very small range would lead to a higher energy dissipation rate. In addition, owing to the considerable difference between the atomic masses of Au and Si, randomly distributed Au atoms significantly disturb the symmetry of the SiNWs. However, the elementary axes of the [1 1 0] SiNWs remained stable, even in the models with extremely radial or longitudinal impurity segregation. In contrast, we failed to capture the distinguishable elementary axes for most of the doped [1 0 0] samples. The features described above indicate that the impurity Au can effectively tune the resonant frequency of the [1 1 0] SiNWs, meanwhile, causes no large frequency shift that could be potentially caused by the deflection of the elementary coordinate system.

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Section: Natural Frequency Decrease Caused By the Impurity Aumentioning

confidence: 99%

“…The beat frequency can be calculated as follows considering an NW with a fixed cross-section and length [43].…”

Section: Subsurfacementioning

confidence: 99%

Vibrational Characteristics of Au‐Doped Si Nanowires: A Molecular Dynamics Study with a Modified Embedded Atom Method Potential Developed for Si‐H‐Au Systems

Liu

Zhang

Wang

et al. 2022

Journal of Nanomaterials

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“…Buoyed by the contrasting properties of graphene and BNNS, there is a clear need to investigate the mechanical characteristics of nanocomposites reinforced with hybrid BN–C nanostructures. Indeed, some computational studies have confirmed the attractive physical qualities of stand-alone BN–C nanostructures in response to mechanical and thermal loads [26,27].…”

Section: Introductionmentioning

confidence: 99%

Tensile and Interfacial Loading Characteristics of Boron Nitride-Carbon Nanosheet Reinforced Polymer Nanocomposites

Vijayaraghavan

Zhang

2019

Polymers

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The discovery of hybrid boron nitride–carbon (BN–C) nanostructures has triggered enormous research interest in the design and fabrication of new generation nanocomposites. The robust design of these nanocomposites for target applications requires their mechanical strength to be characterized with a wide range of factors. This article presents a comprehensive study, with the aid of molecular dynamics analysis, of the tensile loading mechanics of BN–C nanosheet reinforced polyethylene (PE) nanocomposites. It is observed that the geometry and lattice arrangement of the BN–C nanosheet influences the tensile loading characteristics of the nanocomposites. Furthermore, defects in the nanosheet can severely impact the tensile loading resistance, the extent of which is determined by the defect’s location. This study also found that the tensile loading resistance of nanocomposites tends to weaken at elevated temperatures. The interfacial mechanics of the BN–C nanocomposites are also investigated. This analysis revealed a strong dependency with the carbon concentration in the BN–C nanosheet.

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“…Recently, several studies on the nanowire's vibrational behaviors and properties have been done, including the experiments [10][11][12][13], theoretical modeling [14][15][16][17][18][19][20] and computational simulations [21][22][23][24][25][26][27][28][29]. Some researchers focus on the influence of the nanowire's material.…”

Section: Introductionmentioning

confidence: 99%

A Molecular Dynamic Study on Nonlinear Vibration Behaviors of Fe Nanowires

Zheng

Ding

et al. 2018

Int. J. Comput. Methods

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In this paper, vibration behaviors of Fe nanowires are investigated by using the large-scale molecular dynamics (MD) simulations. It is observed that the vibration frequency of nanowires rises slightly and nonlinearly with the increase of initial actuation amplitude. Based on the atomic arrangement, a discrete spring-mass model is developed. Its nonlinear elastic relation is used to explain this phenomenon. In addition, Fe nanowires with different lengths and heights show different vibration properties in this work. The ratio between the length ([Formula: see text]) and the height ([Formula: see text]) of nanowires has a significant influence on vibration behaviors. The vibration properties of nanowires can be explained by the Euler–Bernoulli model when the ratio is relatively large, while they can be illustrated by the Timoshenko model when the ratio is relatively small.

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Beat vibration of hybrid boron nitride-carbon nanotubes – A new avenue to atomic-scale mass sensing

Cited by 21 publications

References 45 publications

Vibrational Characteristics of Au‐Doped Si Nanowires: A Molecular Dynamics Study with a Modified Embedded Atom Method Potential Developed for Si‐H‐Au Systems

Vibrational Characteristics of Au‐Doped Si Nanowires: A Molecular Dynamics Study with a Modified Embedded Atom Method Potential Developed for Si‐H‐Au Systems

Tensile and Interfacial Loading Characteristics of Boron Nitride-Carbon Nanosheet Reinforced Polymer Nanocomposites

A Molecular Dynamic Study on Nonlinear Vibration Behaviors of Fe Nanowires

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