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PDMSkin – On-Skin Gestures with Printable Ultra-Stretchable Soft Electronic Second Skin

Röddiger, Tobias; Beigl, Michael; Wolffram, Daniel; Budde, Matthias; Sun, Hongye

Abstract:
Innovative enabling technologies are key drivers of human augmentation. In this paper, we explore a new, conductive, and configurable material made from Polydimethylsiloxane (PDMS) that is capillary doped with silver particles (Ag) using an immiscible secondary fluid to build ultra-stretchable, soft electronics. Bonding silver particles directly with PDMS enables inherently stretchable Ag-PDMS circuits. Compared to previous work, the reduced silver consumption creates significant advantages, e.g., better stretchability and lower costs. The secondary fluid ensures self-assembling conductivity networks. Sensors are 3D-printed ultra-thin (<100μm) onto a pure PDMS substrate in one step and only require a PDMS cover-layer. They exhibit almost stable electrical properties even for an intense stretching of >200%. Therefore, printed circuits can attach tightly onto the body. Due to biocompatibility, devices can be implanted (e.g., open wounds treatment). We present a proof of concept on-skin interface that uses the new material to provide six distinct input gestures. Our quantitative evaluation with ten participants shows that we can successfully classify the gestures with a low spatial-resolution circuit. ... mehr

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Originalveröffentlichung
DOI: 10.1145/3384657.3384789
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Publikationstyp Proceedingsbeitrag
Publikationsmonat/-jahr 03.2020
Sprache Englisch
Identifikator ISBN: 978-1-4503-7603-7
KITopen-ID: 1000121336
Erschienen in AHs '20: Proceedings of the Augmented Humans International Conference, March 2020
Verlag ACM, New York (NY)
Seiten Article No.: 28
Nachgewiesen in Scopus
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