The pull-in instability and eigenfrequency variations of a graphene resonator under electrostatic loading

Zhang, Yin; Zhao, Ya‐Pu

doi:10.1177/10812865221101120

Cited by 4 publications

(2 citation statements)

References 46 publications

(160 reference statements)

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“…As shown in figure 4(b), the maximum value of ΔR/R (R is the average value of statistical data and ΔR is the fluctuation difference of statistical data) is located at the resonance frequency, and the overall fluctuation value is less than 2%, which is a good stability for such a small resonator [41]. The maximum noise recorded also existed at the resonant frequency, and the overall fluctuation value was less than 0.15 V which is not large compared to the values reported in other literatures [28].…”

Section: Acmentioning

confidence: 91%

Resonance characteristics and energy losses of an ultra-high frequency ZnO nanowire resonator

Cai¹,

Xu²

2022

Phys. Scr.

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An ultra-high frequency (UHF, 300 MHz ~ 3 GHz) nano mechanical resonator based on defect-free zinc oxide nanowire (ZnO NW) was fabricated through a top-down processing method. Using UHF detection technology based on a lock-in amplifier, through optimized measurement of high-performance equipment, it was detected at room temperature that the ZnO NW resonator could operate at a resonance frequency of nearly 650 MHz and a quality factor Q≈1000~2500, and its force sensitivity could reach 1 f N·Hz-1/2. The deformation, driving force and first-order resonance frequency of the resonator were calculated using the continuum model and compared with the experimental data. The resonance characteristics of ZnO NW resonators under piezoelectric excitation were analyzed and compared with that under electromagnetic excitation. The effects of various loss factors on the resonance characteristics were analyzed, with emphasis on the generation mechanism of piezoelectric loss, clamping loss and eddy current loss and their effects on quality factor and force sensitivity. The ZnO NWs used in this paper have piezoelectric effect, which is rare in other NWs, and are difficult to be fabricated in a bottom-up manner. And experiments show that for ZnO NWs resonators, piezoelectric excitation has obvious advantages in Q value compared with electromagnetic excitation. Unlike the bottom-up wet etch processing method, the resonant beam structure is well protected by the top-down processing method to reduce internal defects, and the top-down fabrication method is easier to integrate into the fabrication process of integrated circuits, which provides great potential for the applications of NW resonators, such as quantum electromechanical systems and high-frequency signal processing.

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Section: Acmentioning

confidence: 91%

Resonance characteristics and energy losses of an ultra-high frequency ZnO nanowire resonator

Cai¹,

Xu²

2022

Phys. Scr.

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“…Liu et al [14] present an experimental study of wrinkling in the azimuthal direction of a two-layered cylindrical tube driven by swelling/growth. Zhang and Zhao [15] investigate the pull-in instability and eigenfrequency variations of a graphene resonator under electrostatic loading. Finally, Wang et al [16] investigate axisymmetric necking in a hyperelastic sheet under equibiaxial stretching and how it competes with the Treloar–Kearsley instability.…”

mentioning

confidence: 99%

In memory of Prof. Hui-Hui Dai

Chen¹,

Fu²,

Zhong³

2022

Mathematics and Mechanics of Solids

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This special issue of Mathematics and Mechanics of Solids is dedicated to the memory of Professor Hui-Hui Dai who passed away on 5 January 2021 in Hong Kong. Hui-Hui was born on 24 March 1964 in Anhui Province, China. He grew up in Ming Guang, a small town in Jia Shan County, where he attended Ming Guang Primary School and Ming Guang No 1 High School. He was the top scorer in the county in the national university entrance examination at the young age of 16. The years around 1980 were an exciting period in which China had just opened up to the outside world, and universities had an electric atmosphere about science and knowledge after reopening following a 10-year close-down. Hui-Hui must have really enjoyed his studies like his peers. He obtained his BSc from the Department of Mechanics, Zhejiang University, in 1984 and entered Dalian University of Science and Technology in 1984 as an MSc student. Two years into his MSc study, he was awarded a competitive KC Wong Scholarship to study in the United Kingdom. Supervised by Professor Alan Jeffrey in the Department of Engineering Mathematics, University of Newcastle upon Tyne, he obtained his PhD in 1990. After spending just over a year in the University of Western Ontario as a postdoctoral research fellow, he spent another 3 years in the University of Manitoba. He went there as postdoctoral research fellow and was later offered a tenure-tracked position as an Assistant Professor. He moved to the

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Material dielectricity effects on the performance of capacitive micro-devices: a nonlinear study

Valizadeh

Fathalilou²,

Rezazadeh³

2023

Int J Mech Mater Des

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The pull-in instability and eigenfrequency variations of a graphene resonator under electrostatic loading

Cited by 4 publications

References 46 publications

Resonance characteristics and energy losses of an ultra-high frequency ZnO nanowire resonator

Resonance characteristics and energy losses of an ultra-high frequency ZnO nanowire resonator

In memory of Prof. Hui-Hui Dai

Material dielectricity effects on the performance of capacitive micro-devices: a nonlinear study

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