Acoustic interference suppression of quartz crystal microbalance sensor arrays utilizing phononic crystals

Chen, Yung Yu; Huang, Li; Wang, Wei Shan; Lin, Yu Ching; Wu, T.-F.; Sun, Jui‐Sheng; Esashi, Masayoshi

doi:10.1063/1.4802781

Cited by 14 publications

(6 citation statements)

References 14 publications

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“…and/or spin-orbit coupling, silicene is also expected to be a promising candidate for superconductors [6] and/or topological insulators [7]. In contrast to graphene, however, the preparation of silicene is quite difficult: it cannot be exfoliated from bulk silicon because silicon atoms in the bulk are only sp 3 -hybridized while those in silicene are sp 2 /sp 3 hybridized [8].…”

mentioning

confidence: 99%

Various atomic structures of monolayer silicene fabricated on Ag(111)

et al. 2014

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mentioning

confidence: 99%

Various atomic structures of monolayer silicene fabricated on Ag(111)

et al. 2014

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“…At present, although most analytical and semi-analytical solutions have been proved to be correct near the resonance frequency, many mechanical properties have been ignored due to the simplification of the model. The finite element technique is a powerful numerical tool which has been proved to be able to simulate the thickness shear vibration of quartz crystal microbalances well [ 24 , 25 , 26 , 27 , 28 , 29 ]. The finite element equation of structural mechanics and electrostatic coupling of AT cut quartz crystal element is as follows [ 30 ]:

where

and

are the mass, damping and stiffness matrices of structure, respectively.…”

Section: Multiple-physical Field Simulationmentioning

confidence: 99%

Design and Analysis of Quartz Crystal Microbalance with a New Ring-Shaped Interdigital Electrode

Wang

Ling

2022

Sensors

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In this paper, a new type of ring-shaped interdigital electrode is proposed to improve the accuracy and repeatability of quartz crystal microbalance. The influence of different types of single finger, dot finger, dot double-finger electrodes on mass sensitivity distribution as well as the optimal proportion of finger and gap width are obtained through multi-physical coupling simulation. The results show that the design criteria of interdigital electrodes will not change with the increase in the number of fingers. The gap width should obey the decrease order from central to edge and be about twice the width of finger. The width of the outermost finger and the radius of the middle dot electrode should be maintained at about 0.4 and 0.2 times of the total electrode radius. An experiment was carried out to verify that the quartz wafer with a dot double-finger electrode has high quality factors and less modal coupling, which can satisfy the engineering application well. As a conclusion, this study provides a design idea for the electrode to maintain a uniform distribution of quartz crystal microbalance mass sensitivity.

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“…All these studies are just about tuning the bandgap and there is no discussion about the design of any ultrasonic devices. Acoustic switches based on phononic crystals have attracted some investigations recently [10][11][12], but because of the limitations and challenges in the design of ultrasonic switches based on phononic crystals, designed structures only limited to the on-off type switches for a special frequency range. In this study, Ethanol, Methyl nonafluorobutyl ether (MNE) and Quartz are introduced as suitable materials for a phononic crystal structure, which has the required features for the fine thermal tuning of band structures.…”

Section: Introductionmentioning

confidence: 99%

Thermal switching of ultrasonic waves in two-dimensional solid/fluid phononic crystals

Alinejad-Naini

Bahrami

2019

Phys. Scr.

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We have made a theoretical study of temperature effects on two-dimensional Quartz/Ethanol phononic crystal structure in submicrometer scale. By introducing materials with adequate contrast between their elastic constants, sound velocity and mass density, it is feasible to modulate the phononic bandgap which means a range of fRequency that no waves can pass through the structure. The thermal tunability of band structure in megahertz range is demonstrated by the analysis of the band structure using finite element method. Considering the thermal effect, the design of a 1 × 2 ultrasonic-wave switch for the specific frequency of f = 1.64 MHz at room temperature has been reported. The thermal effects can be used to switch the phononic bandgap frequency. To the best of our knowledge, this is for the first time ever that a 1 × 2 ultrasonic switch has been proposed in two-dimensional solid/fluid phononic crystals.

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Acoustic interference suppression of quartz crystal microbalance sensor arrays utilizing phononic crystals

Cited by 14 publications

References 14 publications

Various atomic structures of monolayer silicene fabricated on Ag(111)

Various atomic structures of monolayer silicene fabricated on Ag(111)

Design and Analysis of Quartz Crystal Microbalance with a New Ring-Shaped Interdigital Electrode

Thermal switching of ultrasonic waves in two-dimensional solid/fluid phononic crystals

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