Title :

Transparent stretchable capacitive touch sensor grid using ionic liquid electrodes

Author(s) :

Nguyen, Ngoc Tan [Auteur]
The university of Danang
Matériaux et Acoustiques pour MIcro et NAno systèmes intégrés - IEMN [MAMINA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Sarwar, Mirza [Auteur]
Preston, Claire [Auteur]
Le Goff, Aziliz [Auteur]
Matériaux et Acoustiques pour MIcro et NAno systèmes intégrés - IEMN [MAMINA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Plesse, Cedric [Auteur]
Laboratoire de Physico-chimie des Polymères et des Interfaces [LPPI]
Vidal, Frederic [Auteur]
Laboratoire de Physico-chimie des Polymères et des Interfaces [LPPI]
Cattan, Eric [Auteur]
Matériaux et Acoustiques pour MIcro et NAno systèmes intégrés - IEMN [MAMINA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Madden, John D.W. [Auteur]

Journal title :

Extreme Mechanics Letters

Pages :

100574

Publisher :

Elsevier

Publication date :

2019-11

ISSN :

2352-4316

HAL domain(s) :

Sciences de l'ingénieur [physics]
Sciences de l'ingénieur [physics]/Optique / photonique
Sciences de l'ingénieur [physics]/Acoustique [physics.class-ph]

English abstract : [en]

Low cost soft, flexible and stretchable sensors are being explored that can be applied to virtually any surface, and promise to enable tactile sensing on robots, prosthetics, skin and stretchable displays. Previous work ...
Show more >Low cost soft, flexible and stretchable sensors are being explored that can be applied to virtually any surface, and promise to enable tactile sensing on robots, prosthetics, skin and stretchable displays. Previous work has shown that capacitive sensors that are both stretchable and transparent can be created by using ionically conductive hydrogel electrodes. In this study, the electrodes are interpenetrating polymer networks swollen with ionic liquid, enabling high transparency and stretchability, without evaporation. The interpenetrating network is synthesized from poly(ethylene oxide) and nitrile butadiene rubber. Electrodes are patterned using femtosecond laser machining, creating stretchable electrodes. These were encapsulated in a polydimethylsiloxane substrate, producing a 95% transparent sensor (450 nm). A 4x4 tactile array shows the ability to sense proximity and multi-touch, as well as be robust to variations in environmental temperature (from 4 °C to 72 °C). Temperature change has a large effect on the resistance of the electrodes - an effect that could be used to measure device temperature. In addition, the sensor is able to detect proximity and touch while on skin, when covered by a layer of fabric or during stretch.Show less >

Language :

Anglais

Popular science :

Non

Comment :

JIF=4.806

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL