Development and comparative investigation of Ag-sensitive layer based SAW and QCM sensors for mercury sensing applications

The Analyst ◽  
2016 ◽  
Vol 141 (8) ◽  
pp. 2463-2473 ◽  
Author(s):  
K M Mohibul Kabir ◽  
Ylias M. Sabri ◽  
Ahmad Esmaielzadeh Kandjani ◽  
Samuel J. Ippolito ◽  
Suresh K. Bhargava
Keyword(s):  
Comparative Analysis ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Comparative Investigation ◽  
Sensitive Layer ◽  
Sensing Applications ◽  
Mercury Sensing

Here, we developed Ag sensitive layer-based surface acoustic wave (SAW) and quartz crystal microbalance (QCM) sensors and focused on their comparative analysis for Hg sensing applications.

Mercury Sorption and Desorption on Gold: A Comparative Analysis of Surface Acoustic Wave and Quartz Crystal Microbalance-Based Sensors

Langmuir ◽  
2015 ◽  
Vol 31 (30) ◽  
pp. 8519-8529 ◽  
Author(s):  
K. M. Mohibul Kabir ◽  
Ylias M. Sabri ◽  
Ahmad Esmaielzadeh Kandjani ◽  
Glenn I. Matthews ◽  
Matthew Field ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal

scholarly journals Quantification ofStaphylococcus aureususing surface acoustic wave sensors

RSC Advances ◽  
2019 ◽  
Vol 9 (15) ◽  
pp. 8411-8414 ◽  
Author(s):  
Zhangliang Xu ◽  
Yong J. Yuan
Keyword(s):  
Staphylococcus Aureus ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Acoustic Wave Sensors ◽  
Wave Sensors

Quartz crystal microbalance (QCM), surface acoustic wave (SAW)-Rayleigh and ZnO based SAW-Love sensors were fabricated and their sensitivity was comparatively analyzed for the quantification ofStaphylococcus aureus(S. aureus).

A humidity sensor based on quartz crystal microbalance using graphene oxide as a sensitive layer

Vacuum ◽  
2017 ◽  
Vol 140 ◽  
pp. 101-105 ◽  
Author(s):  
Hao Jin ◽  
Xiang Tao ◽  
Bin Feng ◽  
Liyang Yu ◽  
Demiao Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Quartz Crystal Microbalance ◽  
Humidity Sensor ◽  
Quartz Crystal ◽  
Sensitive Layer

scholarly journals Mode Analysis of Pt/LGS Surface Acoustic Wave Devices

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7111
Author(s):  
Hongsheng Xu ◽  
Hao Jin ◽  
Shurong Dong ◽  
Xinyu Song ◽  
Jinkai Chen ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Three Dimensional ◽  
Euler Angle ◽  
Mode Analysis ◽  
Single Chip ◽  
Leaky Waves ◽  
Pt Electrode ◽  
Sensing Applications ◽  
Saw Devices

Platinum (Pt) gratings on langasite (LGS) substrates are a widely used structures in high temperature surface acoustic wave (SAW) devices. Multiple modes can be excited in Pt/LGS SAW devices owing to the heavy weight of the Pt electrode and leaky waves in the LGS substrate. In this work, we report on a detailed mode analysis of Pt/LGS SAW devices, where three commonly used LGS cuts are considered. A three-dimensional (3D) finite element method (FEM) numerical model was developed, and the simulation and experiment results were compared. The experiment and simulation results showed that there are two modes excited in the Pt/LGS SAW devices with Euler angle (0°, 138.5°, 27°) and (0°, 138.5°, 117°), which are Rayleigh-type SAW and SH-type leaky wave, respectively. Only the Rayleigh-type mode was observed in the Pt/LGS SAW devices with Euler angle (0°, 138.5°, 72°). It was found that the acoustic velocities are dependent on the wavelength, which is attributed to the change of wave penetration depth in interdigital transducers (IDTs) and the velocity dispersion can be modulated by the thickness of the Pt electrode. We also demonstrated that addition of an Al2O3 passivation layer has no effect on the wave modes, but can increase the resonant frequencies. This paper provides a better understanding of the acoustic modes of Pt/LGS SAW devices, as well as useful guidance for device design. It is believed that the Rayleigh-type SAW and SH-type leaky waves are potentially useful for dual-mode sensing applications in harsh environments, to achieve multi-parameter monitoring or temperature-compensation on a single chip.

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