A comparative study on simulation performances of rigid and bendable SAW for gas sensor

Fatini Sidek, Rashidah Arsat, Rafidah Ibrahim, Aizzat Ayuni Mohad Idris, Zaharah Johari, Leow Pei Ling

Research output: ResearchConference contribution

Abstract

Flexible Surface Acoustic Wave (SAW) devices are very promising technology for various applications that offers excellent flexibility, low in cost and light weight. In this paper, a SAW gas sensor is designed and simulated using COMSOL Multiphysics to investigate the degree of bending effect on the frequency and displacement. The investigations were conducted onto SAW gas sensor as rigid and two different bends direction; bend-in (concave) and bend-out (convex). The operating frequency of the SAW sensor were found to be at the range of 80-200 MHz. The frequency shift of the sensor were obtained after exposing the polyisobutylene (PIB) to the dichloromethane DCM gas which will change the density of sensing layer. From the simulation, it is shown that resonance frequency range of 189MHz for the rigid substrate with displacement of 0.706 nm. Notably, the bending degree of h range from 0.2 μm to 1.25 μm exhibits reduction for displacement and frequency. The higher frequency of bend-out (convex) design achieve is 1.8945 MHz with displacement of 0.68 nm at curve of h= 0.2 μm, Improvement have been observed for the frequency shift of 14 Hz and sensitivity of 1324.24. It shows that the sensor is more sensitive to detect the gas. The evaluation of device bending effect on the eigenfrequency, displacement and frequency shift provide ways to enhance the sensitivity of the gas sensor and expand its possibility of realizing their benefit particularly for sensing device enhancement.

LanguageEnglish
Title of host publication11th Asian Conference on Chemical Sensors, ACCS 2015
PublisherAmerican Institute of Physics Inc.
Volume1808
ISBN (Electronic)9780735414761
DOIs
StatePublished - 13 Mar 2017
Externally publishedYes
Event11th Asian Conference on Chemical Sensors, ACCS 2015 - Penang, Malaysia
Duration: 16 Nov 201518 Nov 2015

Other

Other11th Asian Conference on Chemical Sensors, ACCS 2015
CountryMalaysia
CityPenang
Period16/11/1518/11/15

Fingerprint

sensors
gases
simulation
frequency shift
sensitivity
shift
polyisobutylene
surface acoustic wave devices
flexibility
frequency ranges
costs
augmentation
evaluation
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sidek, F., Arsat, R., Ibrahim, R., Idris, A. A. M., Johari, Z., & Ling, L. P. (2017). A comparative study on simulation performances of rigid and bendable SAW for gas sensor. In 11th Asian Conference on Chemical Sensors, ACCS 2015 (Vol. 1808). [020048] American Institute of Physics Inc.. DOI: 10.1063/1.4975281

A comparative study on simulation performances of rigid and bendable SAW for gas sensor. / Sidek, Fatini; Arsat, Rashidah; Ibrahim, Rafidah; Idris, Aizzat Ayuni Mohad; Johari, Zaharah; Ling, Leow Pei.

11th Asian Conference on Chemical Sensors, ACCS 2015. Vol. 1808 American Institute of Physics Inc., 2017. 020048.

Research output: ResearchConference contribution

Sidek, F, Arsat, R, Ibrahim, R, Idris, AAM, Johari, Z & Ling, LP 2017, A comparative study on simulation performances of rigid and bendable SAW for gas sensor. in 11th Asian Conference on Chemical Sensors, ACCS 2015. vol. 1808, 020048, American Institute of Physics Inc., 11th Asian Conference on Chemical Sensors, ACCS 2015, Penang, Malaysia, 16/11/15. DOI: 10.1063/1.4975281
Sidek F, Arsat R, Ibrahim R, Idris AAM, Johari Z, Ling LP. A comparative study on simulation performances of rigid and bendable SAW for gas sensor. In 11th Asian Conference on Chemical Sensors, ACCS 2015. Vol. 1808. American Institute of Physics Inc.2017. 020048. Available from, DOI: 10.1063/1.4975281
Sidek, Fatini ; Arsat, Rashidah ; Ibrahim, Rafidah ; Idris, Aizzat Ayuni Mohad ; Johari, Zaharah ; Ling, Leow Pei. / A comparative study on simulation performances of rigid and bendable SAW for gas sensor. 11th Asian Conference on Chemical Sensors, ACCS 2015. Vol. 1808 American Institute of Physics Inc., 2017.
@inbook{b42503b66f834d40a473f331a1197767,
title = "A comparative study on simulation performances of rigid and bendable SAW for gas sensor",
abstract = "Flexible Surface Acoustic Wave (SAW) devices are very promising technology for various applications that offers excellent flexibility, low in cost and light weight. In this paper, a SAW gas sensor is designed and simulated using COMSOL Multiphysics to investigate the degree of bending effect on the frequency and displacement. The investigations were conducted onto SAW gas sensor as rigid and two different bends direction; bend-in (concave) and bend-out (convex). The operating frequency of the SAW sensor were found to be at the range of 80-200 MHz. The frequency shift of the sensor were obtained after exposing the polyisobutylene (PIB) to the dichloromethane DCM gas which will change the density of sensing layer. From the simulation, it is shown that resonance frequency range of 189MHz for the rigid substrate with displacement of 0.706 nm. Notably, the bending degree of h range from 0.2 μm to 1.25 μm exhibits reduction for displacement and frequency. The higher frequency of bend-out (convex) design achieve is 1.8945 MHz with displacement of 0.68 nm at curve of h= 0.2 μm, Improvement have been observed for the frequency shift of 14 Hz and sensitivity of 1324.24. It shows that the sensor is more sensitive to detect the gas. The evaluation of device bending effect on the eigenfrequency, displacement and frequency shift provide ways to enhance the sensitivity of the gas sensor and expand its possibility of realizing their benefit particularly for sensing device enhancement.",
author = "Fatini Sidek and Rashidah Arsat and Rafidah Ibrahim and Idris, {Aizzat Ayuni Mohad} and Zaharah Johari and Ling, {Leow Pei}",
year = "2017",
month = "3",
doi = "10.1063/1.4975281",
volume = "1808",
booktitle = "11th Asian Conference on Chemical Sensors, ACCS 2015",
publisher = "American Institute of Physics Inc.",

}

TY - CHAP

T1 - A comparative study on simulation performances of rigid and bendable SAW for gas sensor

AU - Sidek,Fatini

AU - Arsat,Rashidah

AU - Ibrahim,Rafidah

AU - Idris,Aizzat Ayuni Mohad

AU - Johari,Zaharah

AU - Ling,Leow Pei

PY - 2017/3/13

Y1 - 2017/3/13

N2 - Flexible Surface Acoustic Wave (SAW) devices are very promising technology for various applications that offers excellent flexibility, low in cost and light weight. In this paper, a SAW gas sensor is designed and simulated using COMSOL Multiphysics to investigate the degree of bending effect on the frequency and displacement. The investigations were conducted onto SAW gas sensor as rigid and two different bends direction; bend-in (concave) and bend-out (convex). The operating frequency of the SAW sensor were found to be at the range of 80-200 MHz. The frequency shift of the sensor were obtained after exposing the polyisobutylene (PIB) to the dichloromethane DCM gas which will change the density of sensing layer. From the simulation, it is shown that resonance frequency range of 189MHz for the rigid substrate with displacement of 0.706 nm. Notably, the bending degree of h range from 0.2 μm to 1.25 μm exhibits reduction for displacement and frequency. The higher frequency of bend-out (convex) design achieve is 1.8945 MHz with displacement of 0.68 nm at curve of h= 0.2 μm, Improvement have been observed for the frequency shift of 14 Hz and sensitivity of 1324.24. It shows that the sensor is more sensitive to detect the gas. The evaluation of device bending effect on the eigenfrequency, displacement and frequency shift provide ways to enhance the sensitivity of the gas sensor and expand its possibility of realizing their benefit particularly for sensing device enhancement.

AB - Flexible Surface Acoustic Wave (SAW) devices are very promising technology for various applications that offers excellent flexibility, low in cost and light weight. In this paper, a SAW gas sensor is designed and simulated using COMSOL Multiphysics to investigate the degree of bending effect on the frequency and displacement. The investigations were conducted onto SAW gas sensor as rigid and two different bends direction; bend-in (concave) and bend-out (convex). The operating frequency of the SAW sensor were found to be at the range of 80-200 MHz. The frequency shift of the sensor were obtained after exposing the polyisobutylene (PIB) to the dichloromethane DCM gas which will change the density of sensing layer. From the simulation, it is shown that resonance frequency range of 189MHz for the rigid substrate with displacement of 0.706 nm. Notably, the bending degree of h range from 0.2 μm to 1.25 μm exhibits reduction for displacement and frequency. The higher frequency of bend-out (convex) design achieve is 1.8945 MHz with displacement of 0.68 nm at curve of h= 0.2 μm, Improvement have been observed for the frequency shift of 14 Hz and sensitivity of 1324.24. It shows that the sensor is more sensitive to detect the gas. The evaluation of device bending effect on the eigenfrequency, displacement and frequency shift provide ways to enhance the sensitivity of the gas sensor and expand its possibility of realizing their benefit particularly for sensing device enhancement.

UR - http://www.scopus.com/inward/record.url?scp=85016969770&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85016969770&partnerID=8YFLogxK

U2 - 10.1063/1.4975281

DO - 10.1063/1.4975281

M3 - Conference contribution

VL - 1808

BT - 11th Asian Conference on Chemical Sensors, ACCS 2015

PB - American Institute of Physics Inc.

ER -