Gallium-Based Thin Films for Wearable Human Motion Sensors

被引：45

作者：

Dejace, Laurent ^{[1
]}

Laubeuf, Nathan ^{[1
]}

Furfaro, Ivan ^{[1
]}

Lacour, Stephanie P. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne EPFL, Bertarelli Fdn Chair Neuroprosthet Technol, Lab Soft Bioelect Interfaces, Inst Microengn,Inst Bioengn,Ctr Neuroprosthet, CH-1202 Geneva, Switzerland

来源：

ADVANCED INTELLIGENT SYSTEMS | 2019年 / 1卷 / 05期

关键词：

liquid metals; motion sensors; stretchable electronics;

D O I：

10.1002/aisy.201900079

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Wearable electronic circuits based on the films of gallium and its alloys offer promising implementations in health monitoring and gaming sensing applications. However, the complex rheology of liquid metals makes it challenging to manufacture thin gallium-based devices with reliable, reproducible, and stable properties over time. Herein, the surface coating and topography of silicone substrates are engineered to enable precisely defined, micrometer-thick liquid metal patterns over large (>10cm(2)) surface areas, and high design versatility. Control over the film microstructure meets manufacturing conditions that enable gallium films with a precise, repeatable, and durable electromechanical performance. The robustness and applicability of this technology in a virtual-reality scenario is demonstrated by implementing thin, soft, and stretchable gallium-based sensors to accurately monitor human hand kinematics.

引用

页数：8

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