Lu Wengang, Mustafa Beenish, Wang Zhiyuan, Lian Fuzhuo, Yu Geliang
National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China.
Collaborative Innovation Centre of Advanced Microsctructures, Nanjing University, Nanjing 210093, China.
Nanomaterials (Basel). 2022 Mar 5;12(5):871. doi: 10.3390/nano12050871.
Flexible strain sensors based on 2D materials have been proven effective for wearable health monitoring devices, human motion detection, and fitness applications. These sensors are flexible, light, and user-friendly, but their sensitivity and detection range need to be enhanced. Among many 2D materials, MXene attracts much interest due to its remarkable properties, such as high electrical conductivity, excellent mechanical properties, flexibility, and good hydrophilicity. However, it is a challenge to fabricate strain sensors with extreme sensitivity and a wide sensing range. In this work, a multifunctional, cost-effective, and highly sensitive PDMS-encapsulated MXene@polyester fabric strain sensor was fabricated. Firstly, complete adsorption of MXene within the fabric formed conductive networks, and then PDMS was used to endow superhydrophobicity and corrosion resistance. The strain sensor demonstrated multifunctional applications and outstanding performance, such as long-term stability (over 500 cycles) and a wide sensing range (8%). The proposed sensor has promising potential for wearable electronic devices such as health monitoring systems and physiological sensing applications.
基于二维材料的柔性应变传感器已被证明在可穿戴健康监测设备、人体运动检测和健身应用中有效。这些传感器具有柔性、轻便且用户友好的特点，但它们的灵敏度和检测范围需要提高。在众多二维材料中，MXene因其卓越的性能，如高导电性、优异的机械性能、柔韧性和良好的亲水性而备受关注。然而，制造具有极高灵敏度和宽传感范围的应变传感器是一项挑战。在这项工作中，制备了一种多功能、经济高效且高灵敏度的聚二甲基硅氧烷（PDMS）封装的MXene@聚酯织物应变传感器。首先，MXene在织物内完全吸附形成导电网络，然后使用PDMS赋予其超疏水性和耐腐蚀性。该应变传感器展示了多功能应用和出色的性能，如长期稳定性（超过500次循环）和宽传感范围（8%）。所提出的传感器在可穿戴电子设备，如健康监测系统和生理传感应用方面具有广阔的潜力。
