A Breathable and Screen‐Printed Pressure Sensor Based on Nanofiber Membranes for Electronic Skins

• DOI: 10.1002/admt.201700241
• Publication Date: 2017-12-05T10:55:43Z
• Authors: Wei Yang; Nian‐Wu Li; Shuyu Zhao; Zuqing Yuan; Jiaona Wang; Xinyu Du; Bin Wang; Ran Cao; Xiuyan Li; Weihua Xu; Zhong Lin Wang; Congju Li
• Keywords: Electronic Skin; Thermoplastic polyurethane

Abstract In recent years, skin‐like pressure sensors with high sensitivity and excellent flexibility are widely demonstrated for electronic skins. However, most of the reported still based on airtight films, resulting in limited air permeability. Herein, cost‐effective capable processes large‐scale production lightweight breathable nanofiber membranes (NM). The sensor is composed a layer‐by‐layer structure poly(vinylidene fluoride) NM substrates, silver nanowires electrodes, thermoplastic polyurethane dielectric layer through screen printing ultrasonic bonding techniques. Benefiting from porosity NM, capacitive possesses unique performance, including superior 4.2 kPa −1 , fast response time (<26 ms), an ultralow detection limit (1.6 Pa), breathability (Gurley value = 17.3 s/100 mL). Furthermore, not only applicable to monitor human physiological signals, but also detect spatial distribution. These results indicate that screen‐print promising skins