Li Mufang, Chen Jiaxin, Zhong Weibing, Luo Mengying, Wang Wen, Qing Xing, Lu Ying, Liu Qiongzhen, Liu Ke, Wang Yuedan, Wang Dong
Hubei Key Laboratory of Advanced Textile Materials & Application, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China.
ACS Sens. 2020 Aug 28;5(8):2545-2554. doi: 10.1021/acssensors.0c00870. Epub 2020 Jul 28.
The rapid development of wearable devices puts forward higher requirements for mass-produced integrated smart systems that incorporate multiple electric components, such as energy supplying, multisensing, and communicating. To synchronously realize continuously self-powering, multifunctional sensing, distinguish signals from different stimuli, and productively design and fabricate a large-area sensing array, an all-fabric-based self-powered pressure-temperature-sensing electronic skin (e-skin) was prepared in this study by assembling highly flexible and compressible 3D spacer fabric (SF) and the thermoelectric poly(3,4-ethylenedioxythiophene)poly(styrenesulfonate) (PEDOT:PSS). The all-fabric-based e-skin can efficiently and accurately sense the temperature with a detection resolution of 0.1 K and a response time of 1 s, as well as pressure within a wide range of 200 Pa to 200 kPa and a fast response time of 80 ms. The electricity necessary for driving the sensor can be provided by the temperature difference between the body and environment. Notably, independent voltage and current signals can be generated and read out under the simultaneous temperature-pressure stimuli. For the first time, a real waistcoat-like e-skin with electricity-generating and pressure-temperature-sensing functions on the whole area was designed and prepared by a simple and easy to scale-up production method. All of these features make the developed all-fabric self-powered sensor have very promising applications.
可穿戴设备的快速发展对包含多种电子元件（如能量供应、多传感和通信）的大规模集成智能系统提出了更高的要求。为了同步实现持续自供电、多功能传感、区分来自不同刺激的信号以及高效设计和制造大面积传感阵列，本研究通过组装高度柔性且可压缩的三维间隔织物（SF）和热电聚（3,4-乙撑二氧噻吩）聚（苯乙烯磺酸盐）（PEDOT:PSS）制备了一种全织物基自供电压力-温度传感电子皮肤（e-皮肤）。这种全织物基e-皮肤能够高效且准确地感测温度，检测分辨率为0.1 K，响应时间为1 s，还能感测200 Pa至200 kPa宽范围内的压力，响应时间为80 ms。驱动传感器所需的电能可由人体与环境之间的温差提供。值得注意的是，在温度-压力同时刺激下能够产生并读出独立的电压和电流信号。首次通过一种简单且易于放大生产的方法设计并制备了一种在整个区域具有发电和压力-温度传感功能的真正背心式e-皮肤。所有这些特性使得所开发的全织物自供电传感器具有非常广阔的应用前景。
