3D-Printed Stacked Ionic Assemblies for Iontronic Touch Sensors

Jeremy Odent; Nicolas Baleine; Valentin BiardYuta DobashiCedric VancaeyzeeleGiao T. M. NguyenJohn D. W. MaddenCedric PlesseJean-Marie Raquez

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3D-Printed Stacked Ionic Assemblies for Iontronic Touch Sensors

机译：3D-Printed Stacked Ionic Assemblies for Iontronic Touch Sensors

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Sensing is the process of detecting and monitoring any physico-chemicalenvironmental parameters. Herein, new self-powered iontronic sensors,which utilize touch-induced ionic charge separation in ionically conductivehydrogels, are introduced for potential use in object mapping, recognition,and localization. This is accomplished using high-resolutionstereolithography (SLA) 3D printing of stacked ionic assemblies consistingof discrete compartments having different ion transport properties. Thelatter assemblies readily allow programming the output voltage magnitudeand polarity by means of variations in ion type, charge density, andcross-linking density within the iontronic device. Voltages of up to 70 mVare generated on application of compressive strains of as much as 50(≈22.5 kPa), with the magnitude directly proportional to stress, and thepolarity dependent on the sign of the mobile ion. As a proof-of-conceptdemonstration, the resulting touch sensors are integrated on the fingertipto enable the tactile feedback, mimicking the tactile perception of objectsfor recognition applications. In addition, it is proposed that streamingpotential is the underlying mechanism behind the iontronic touch sensors.The electromechanical response is therein consistent with a streamingpotential model.

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《Advanced functional materials》 |2023年第3期|2210485.1-2210485.11|共11页
作者
Jeremy Odent; Nicolas Baleine; Valentin BiardYuta DobashiCedric VancaeyzeeleGiao T. M. NguyenJohn D. W. MaddenCedric PlesseJean-Marie Raquez;
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作者单位

Laboratory of Polymeric and Composite Materials (LPCM)Center of Innovation and Research in Materials and Polymers (CIRMAP)University of Mons (UMONS)Place du Parc 20, 7000 Mons, Belgium;

Institute of Medical ScienceUniversity of TorontoToronto, ON M5S 1A8, Canada;

The Laboratory of Physical Chemistry of Polymers and Interfaces (LPPI)CY Cergy Paris Universite5 mail Gay Lussac, Neuville sur Oise, 95000 Cergy, FranceAdvanced Materials and Process Engineering LaboratoryElectrical and Computer EngineeringUniversity of British ColumbiaVancouver, BC V6T 1Z4, Canada;

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正文语种英语
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iontronic sensors; stacked ionic assemblies; stereolithography; touchpressure monitoring;

3D-Printed Stacked Ionic Assemblies for Iontronic Touch Sensors

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