材料科学
压阻效应
压力传感器
灵敏度(控制系统)
可穿戴计算机
堆积
可穿戴技术
数码产品
纳米技术
人体运动
运动(物理)
光电子学
电子工程
机械工程
电气工程
计算机科学
人工智能
嵌入式系统
物理
核磁共振
工程类
作者
Cuicui Du,Hongjian Zhang,Xiaofei Liu,Shengyang Zhou,Yanan Ma,Shuxuan Li,Yong Zhang
标识
DOI:10.1021/acsami.3c16125
摘要
Flexible pressure sensors are intensively demanded in various fields such as electronic skin, medical and health detection, wearable electronics, etc. MXene is considered an excellent sensing material due to its benign metal conductivity and adjustable interlayer distance. Exhibiting both high sensitivity and long-term stability is currently an urgent pursuit in MXene-based flexible pressure sensors. In this work, high-strength methylcellulose was introduced into the MXene film to increase the interlayer distance of 2D nanosheets and fundamentally overcome the self-stacking problem. Thus, concurrent improvement of the sensing capability and mechanical strength was obtained. By appropriately modulating the ratio of methylcellulose and MXene, the obtained pressure sensor presents a high sensitivity of 19.41 kPa-1 (0.88-24.09 kPa), good stability (10000 cycles), and complete biodegradation in H2O2 solution within 2 days. Besides, the sensor is capable of detecting a wide range of human activities (pulse, gesture, joint movement, etc.) and can precisely recognize spatial pressure distribution, which serves as a good candidate for next-generation wearable electronic devices.
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