Flexible single-electrode triboelectric nanogenerators with MXene/PDMS composite film for biomechanical motion sensors
Flexible single-electrode triboelectric nanogenerators with MXene/PDMS composite film for biomechanical motion sensors
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DOI：
10.1016/j.nanoen.2020.105383
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发表时间：
2020-12-01
期刊：
影响因子：
17.6
通讯作者：
Kang, Dae Joon
中科院分区：
文献类型：
--
作者：
He, Wen;Sohn, Minkyun;Kang, Dae Joon
对便携式电子产品日益增长的需求要求现代电源灵活、可穿戴、耐用和防水。本文报道了一种由MXene/聚二甲基硅氧烷薄膜组成的柔性单电极摩擦电纳米发电机。系统地研究了（MXene）含量（wt%）和压缩力对所制备器件输出性能的影响。通过定期手工锤击2 × 4 cm(2)的智能纺织品复合材料，获得了225 V的峰对峰开路电压，30 μ A cm（-2）的短路电流密度和10 mW cm（-2）的最大功率密度，负载电阻为100 M ω。高输出直接为80个绿色发光二极管串联供电，无需任何额外电源。除了作为摩擦电纳米发电机的应用之外，这种基于纺织品的复合材料还可以作为人体运动传感器来实现，检测各种人体运动，如手指敲击、拍手和手锤。这种轻质智能纺织品为多功能电源提供了潜在的机会，因此在自供电可穿戴电子产品中具有很好的应用前景。
The increasing demand of portable electronics requires modern power sources to be flexible, wearable, durable, and waterproof. This work reports a flexible single-electrode triboelectric nanogenerator composed of MXene/ polydimethylsiloxane film. The effect of (MXene) content (wt%) and compressive force on the output performance of the as-prepared devices are systematically studied. A peak-to-peak open-circuit voltage of 225 V, shortcircuit current density of 30 mu A cm(-2), and a maximum power density of 10 mW cm(-2) on a load resistance of 100 M Omega are obtained by periodically hand hammering a 2 x 4 cm(2) smart textile-based composite. The high output directly powers 80 green light emitting diodes connected in series without any additional power source. In addition to its application as a triboelectric nanogenerator, the textile-based composite is also implemented as a human motion sensor, detecting various human motions such as finger tapping, hand clapping, and hand hammering. Such lightweight smart textiles provide potential opportunities for multifunctional power sources and hence have promising applications in self-powered wearable electronics.