材料科学
标度系数
温度系数
压阻效应
石墨烯
聚二甲基硅氧烷
弯曲
拉伤
复合数
纳米线
磁滞
复合材料
可穿戴计算机
纳米技术
光电子学
制作
凝聚态物理
计算机科学
嵌入式系统
病理
内科学
物理
替代医学
医学
作者
Shicong Niu,Xueting Chang,Zhihao Zhu,Zhiwei Qin,Junfeng Li,Yingchang Jiang,Dongsheng Wang,Chuanxiao Yang,Yang Gao,Shibin Sun
标识
DOI:10.1021/acsami.1c14671
摘要
Currently, the exploration of wearable strain sensors that can work under subzero temperatures while simultaneously possessing anti-interference capability toward temperature is still a grand challenge. Herein, we present a low-temperature wearable strain sensor that is constructed via the incorporation of a Ag nanowires/graphene (Ag NWs/G) composite into the polydimethylsiloxane (PDMS) polymer. The Ag NWs/G/PDMS strain sensor exhibits promising flexibility at a very low temperature (-40 °C), outstanding fatigue resistance with low hysteresis energy, and near-zero temperature coefficient of resistance (TCR). The Ag NWs/G/PDMS strain sensor shows excellent sensing performance under subzero temperatures with a very high gauge factor of 9156 under a strain of >36%, accompanied by a noninterference characteristic to temperature (-40 to 20 °C). The Ag NWs/G/PDMS strain sensor also demonstrates the feasibility of monitoring various human movements such as finger bending, arm waving, wrist rotation, and knee bending under both room temperature and low-temperature conditions. This work initiates a new promising strategy to construct next-generation wearable strain sensors that can work stably and effectively under very low temperatures.
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