材料科学
压阻效应
复合材料
压力传感器
墨水池
层状结构
耐久性
聚酰亚胺
纳米技术
机械工程
工程类
图层(电子)
作者
Tingjie Chen,Zhiyong Liu,Gang Zhao,Zipeng Qin,Peitao Zheng,John Tosin Aladejana,Zhendong Tang,Mingcen Weng,Xiangfang Peng,Jian Chang
标识
DOI:10.1021/acsami.2c15922
摘要
Sustainable biomass materials are promising for low-cost wearable piezoresistive pressure sensors, but these devices are still produced with time-consuming manufacturing processes and normally display low sensitivity and poor mechanical stability at low-pressure regimes. Here, an aqueous MXene ink obtained by simply ball-milling is developed as a conductive modifier to fabricate the multiresponsive bidirectional bending actuator and compressible MXene-plant fiber sponge (MX-PFS) for durable and wearable pressure sensors. The MX-PFS is fabricated by physically foaming MXene ink and plant fibers. It possesses a lamellar porous structure composed of one-dimensional (1D) MXene-coated plant fibers and two-dimensional (2D) MXene nanosheets, which significantly improves the compression capacity and elasticity. Consequently, the encapsulated piezoresistive sensor (PRS) exhibits large compressible strain (60%), excellent mechanical durability (10 000 cycles), low detection limit (20 Pa), high sensitivity (435.06 kPa–1), and rapid response time (40 ms) for practical wearable applications.
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