Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer

Abstract A capacitive force sensor is one of the electronics components used in several electronic devices and applications. An improvement of sensing characteristics of the sensor, for example sensitivity and response time, becomes an interesting research topic. The alternative approach to enhance...

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Autores principales:	Yasumin Siangkhio, Adirek Rangkasikorn, Narin Tammarugwattana, Navaphun Kayunkid, Sukittaya Jessadaluk, Sakon Rahong, Supamas Wirunchit, Jiti Nukeaw
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/206b62092b324995b207d7c598878209
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spelling	oai:doaj.org-article:206b62092b324995b207d7c5988782092021-11-16T10:15:44ZEnhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer1350-911X0013-519410.1049/ell2.12064https://doaj.org/article/206b62092b324995b207d7c5988782092021-01-01T00:00:00Zhttps://doi.org/10.1049/ell2.12064https://doaj.org/toc/0013-5194https://doaj.org/toc/1350-911XAbstract A capacitive force sensor is one of the electronics components used in several electronic devices and applications. An improvement of sensing characteristics of the sensor, for example sensitivity and response time, becomes an interesting research topic. The alternative approach to enhance the sensitivity and response time of polydimethylsiloxane‐based capacitive force sensors is proposed by introducing poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate, a conductive polymer, into polydimethylsiloxane active layer. Two sensors using different active layers, (i) polydimethylsiloxane (conventional sensor) and (ii) poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane (modified sensor), were fabricated and characterised to reveal the sensing enhancement. Interestingly, the modified sensor shows the significant increase in the sensitivity from 0.7 to 1.14 kPa–1 (+62.86%) and the shortening response time from 1.55 to 0.43 s (−72.26%) with respect to the conventional sensor. In addition, the deterioration in elastic behaviour and the faster charge–discharge behaviour observed from the poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane film indicate the better deformation and charge transport than that from polydimethylsiloxane film. Therefore, it can be concluded that the conductive poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate additive plays the role of mechanical and electrical modification of the polydimethylsiloxane active layer leading to the enhancement in sensitivity and response time of the polydimethylsiloxane‐based capacitive force sensor.Yasumin SiangkhioAdirek RangkasikornNarin TammarugwattanaNavaphun KayunkidSukittaya JessadalukSakon RahongSupamas WirunchitJiti NukeawWileyarticleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENElectronics Letters, Vol 57, Iss 2, Pp 64-67 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Yasumin Siangkhio Adirek Rangkasikorn Narin Tammarugwattana Navaphun Kayunkid Sukittaya Jessadaluk Sakon Rahong Supamas Wirunchit Jiti Nukeaw Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
description	Abstract A capacitive force sensor is one of the electronics components used in several electronic devices and applications. An improvement of sensing characteristics of the sensor, for example sensitivity and response time, becomes an interesting research topic. The alternative approach to enhance the sensitivity and response time of polydimethylsiloxane‐based capacitive force sensors is proposed by introducing poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate, a conductive polymer, into polydimethylsiloxane active layer. Two sensors using different active layers, (i) polydimethylsiloxane (conventional sensor) and (ii) poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane (modified sensor), were fabricated and characterised to reveal the sensing enhancement. Interestingly, the modified sensor shows the significant increase in the sensitivity from 0.7 to 1.14 kPa–1 (+62.86%) and the shortening response time from 1.55 to 0.43 s (−72.26%) with respect to the conventional sensor. In addition, the deterioration in elastic behaviour and the faster charge–discharge behaviour observed from the poly(3,4‐ethylenedioxythiophene) polystyrene sulphonate mixed polydimethylsiloxane film indicate the better deformation and charge transport than that from polydimethylsiloxane film. Therefore, it can be concluded that the conductive poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate additive plays the role of mechanical and electrical modification of the polydimethylsiloxane active layer leading to the enhancement in sensitivity and response time of the polydimethylsiloxane‐based capacitive force sensor.
format	article
author	Yasumin Siangkhio Adirek Rangkasikorn Narin Tammarugwattana Navaphun Kayunkid Sukittaya Jessadaluk Sakon Rahong Supamas Wirunchit Jiti Nukeaw
author_facet	Yasumin Siangkhio Adirek Rangkasikorn Narin Tammarugwattana Navaphun Kayunkid Sukittaya Jessadaluk Sakon Rahong Supamas Wirunchit Jiti Nukeaw
author_sort	Yasumin Siangkhio
title	Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
title_short	Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
title_full	Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
title_fullStr	Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
title_full_unstemmed	Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
title_sort	enhancement of sensing characteristics of polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/206b62092b324995b207d7c598878209
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Enhancement of sensing characteristics of Polydimethylsiloxane‐based capacitive force sensor by introducing conductive polymer to dielectric layer

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