Impedance analysis for lateral field excited acoustic wave sensors

2011 ◽  
Vol 156 (2) ◽  
pp. 969-975 ◽  
Author(s):  
Wenyan Wang ◽  
Chao Zhang ◽  
Yan Liu ◽  
Tianhuai Ding
Keyword(s):  
Acoustic Wave ◽  
Impedance Analysis ◽  
Lateral Field ◽  
Acoustic Wave Sensors ◽  
Wave Sensors

4D-5 Lateral Field Excited High Frequency Bulk Acoustic Wave Sensors

2007 ◽  
Author(s):  
D.F. McCann ◽  
J.M. Parks ◽  
J.M. McGann ◽  
M.P. da Cunha ◽  
J.F. Vetelino
Keyword(s):  
Acoustic Wave ◽  
High Frequency ◽  
Bulk Acoustic Wave ◽  
Lateral Field ◽  
Acoustic Wave Sensors ◽  
Wave Sensors

Investigation of Pure-Lateral-Field-Excitation Bulk Acoustic Wave Sensor with Different Electrodes on (yxl)89° LiNbO3 Single Crystal

2013 ◽  
Vol 791-793 ◽  
pp. 545-549
Author(s):  
Jia Lin Jiang ◽  
Ting Feng Ma
Keyword(s):  
Acoustic Wave ◽  
Electric Field ◽  
Single Crystal ◽  
Bulk Acoustic Wave ◽  
Lateral Field ◽  
Electric Field Direction ◽  
Acoustic Wave Sensors ◽  
Field Excitation ◽  
Wave Sensors ◽  
Piezoelectric Substrate

Lateral field excitation (LFE) acoustic wave devices, which employ two electrodes on the same surface of a piezoelectric substrate, have been found attractive in sensing applications. However, up to now, the sensitivities of pure-LFE devices based on LiNbO3 single crystal is unknown. In this work, the effective LFE exciting electric field direction of (yxl)89° LiNbO3 is determined. The calculated results showed that when the driving electric field direction is perpendicular to the crystallographic X-axis of the piezoelectric substrate, (yxl)89° LiNbO3 LFE device works on pure-LFE mode. Based on this, several LiNbO3 pure-LFE bulk acoustic wave sensors with three different electrodes are designed and fabricated. The results show that the (yxl)89° LiNbO3 LFE sensor with interdigital electrodes is 11.1 times and 2.2 times more sensitive to changes in liquid conductivity compared to traditional LFE devices with single gap circular electrodes and Archimedes spiral electrodes, respectively. The results are important for investigating high-sensitivity LFE bulk acoustic wave sensors by using LiNbO3 single crystal.

Aluminum Nitride Thin Film Based Surface Acoustic Wave Sensors

2008 ◽  
Author(s):  
A. Kabulski ◽  
V. R. Pagán ◽  
D. Cortes ◽  
R. Burda ◽  
O. M. Mukdadi ◽  
...  
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Aluminum Nitride ◽  
Surface Acoustic Wave ◽  
Acoustic Wave Sensors ◽  
Wave Sensors

scholarly journals Surface Acoustic Wave Biosensor with Laser-Deposited Gold Layer Having Controlled Porosity

Chemosensors ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 173
Author(s):  
Dana Miu ◽  
Izabela Constantinoiu ◽  
Valentina Dinca ◽  
Cristian Viespe
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gold Film ◽  
Good Control ◽  
Gold Layer ◽  
Porous Gold ◽  
Deposition Parameters ◽  
Acoustic Wave Sensors ◽  
Controlled Porosity ◽  
Wave Sensors

Laser-deposited gold immobilization layers having different porosities were incorporated into love wave surface acoustic wave sensors (LW-SAWs). Variation of pulsed laser deposition parameters allows good control of the gold film morphology. Biosensors with various gold film porosities were tested using the biotin–avidin reaction. Control of the Au layer morphology is important since the biotin and avidin layer morphologies closely follow that of the gold. The response of the sensors to biotin/avidin, which is a good indicator of biosensor performance, is improved when the gold layer has increased porosity. Given the sizes of the proteins, the laser-deposited porous gold interfaces have optimal pore dimensions to ensure protein stability.

Implications of Ergonomic and Environmental Factors in the Design of Surface Acoustic Wave Sensors

2003 ◽  
Author(s):  
Reginald Parker ◽  
Alisha M. Elmore ◽  
Zuri Farngalo ◽  
Deirdra R. Johnson ◽  
Louis V. Nelson ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Wave Sensors ◽  
Wave Sensors
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