Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors

Abstract In this study, a novel approach to the fabrication of a multimodal temperature and force sensor on ultrathin, conformable and flexible substrates is presented. This process involves coupling a charge-modulated organic field-effect transistor (OCMFET) with a pyro/piezoelectric element, namel...

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Autores principales:	Fabrizio Antonio Viola, Andrea Spanu, Pier Carlo Ricci, Annalisa Bonfiglio, Piero Cosseddu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e7d84a9a0d3d47e780783698bebbbcfc
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spelling	oai:doaj.org-article:e7d84a9a0d3d47e780783698bebbbcfc2021-12-02T15:08:43ZUltrathin, flexible and multimodal tactile sensors based on organic field-effect transistors10.1038/s41598-018-26263-12045-2322https://doaj.org/article/e7d84a9a0d3d47e780783698bebbbcfc2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-26263-1https://doaj.org/toc/2045-2322Abstract In this study, a novel approach to the fabrication of a multimodal temperature and force sensor on ultrathin, conformable and flexible substrates is presented. This process involves coupling a charge-modulated organic field-effect transistor (OCMFET) with a pyro/piezoelectric element, namely a commercial film of poly-vinylene difluoride (PVDF). The proposed device is able to respond to both pressure stimuli and temperature variations, demonstrating the feasibility of the approach for the development of low-cost, highly sensitive and conformable multimodal sensors. The overall thickness of the device is 1.2 μm, being thus able to conform to any surface (including the human body), while keeping its electrical performance. Furthermore, it is possible to discriminate between simultaneously applied temperature and pressure stimuli by coupling sensing surfaces made of poled and unpoled spin-coated PVDF-trifluoroethylene (PVDF-TrFE, a PVDF copolymer) with OCMFETs. This demonstrates the possibility of creating multimodal sensors that can be employed for applications in several fields, ranging from robotics to wearable electronics.Fabrizio Antonio ViolaAndrea SpanuPier Carlo RicciAnnalisa BonfiglioPiero CossedduNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fabrizio Antonio Viola Andrea Spanu Pier Carlo Ricci Annalisa Bonfiglio Piero Cosseddu Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
description	Abstract In this study, a novel approach to the fabrication of a multimodal temperature and force sensor on ultrathin, conformable and flexible substrates is presented. This process involves coupling a charge-modulated organic field-effect transistor (OCMFET) with a pyro/piezoelectric element, namely a commercial film of poly-vinylene difluoride (PVDF). The proposed device is able to respond to both pressure stimuli and temperature variations, demonstrating the feasibility of the approach for the development of low-cost, highly sensitive and conformable multimodal sensors. The overall thickness of the device is 1.2 μm, being thus able to conform to any surface (including the human body), while keeping its electrical performance. Furthermore, it is possible to discriminate between simultaneously applied temperature and pressure stimuli by coupling sensing surfaces made of poled and unpoled spin-coated PVDF-trifluoroethylene (PVDF-TrFE, a PVDF copolymer) with OCMFETs. This demonstrates the possibility of creating multimodal sensors that can be employed for applications in several fields, ranging from robotics to wearable electronics.
format	article
author	Fabrizio Antonio Viola Andrea Spanu Pier Carlo Ricci Annalisa Bonfiglio Piero Cosseddu
author_facet	Fabrizio Antonio Viola Andrea Spanu Pier Carlo Ricci Annalisa Bonfiglio Piero Cosseddu
author_sort	Fabrizio Antonio Viola
title	Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
title_short	Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
title_full	Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
title_fullStr	Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
title_full_unstemmed	Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
title_sort	ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/e7d84a9a0d3d47e780783698bebbbcfc
work_keys_str_mv	AT fabrizioantonioviola ultrathinflexibleandmultimodaltactilesensorsbasedonorganicfieldeffecttransistors AT andreaspanu ultrathinflexibleandmultimodaltactilesensorsbasedonorganicfieldeffecttransistors AT piercarloricci ultrathinflexibleandmultimodaltactilesensorsbasedonorganicfieldeffecttransistors AT annalisabonfiglio ultrathinflexibleandmultimodaltactilesensorsbasedonorganicfieldeffecttransistors AT pierocosseddu ultrathinflexibleandmultimodaltactilesensorsbasedonorganicfieldeffecttransistors
_version_	1718388033998290944

Ultrathin, flexible and multimodal tactile sensors based on organic field-effect transistors

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