Niu Huidan, Du Xinyu, Zhao Shuyu, Yuan Zuqing, Zhang Xiuling, Cao Ran, Yin Yingying, Zhang Chi, Zhou Tao, Li Congju
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences Beijing 100083 P. R. China
School of Nanoscience and Technology, University of Chinese Academy of Sciences Beijing 100049 P. R. China.
RSC Adv. 2018 Aug 17;8(54):30661-30668. doi: 10.1039/c8ra05305g. eCollection 2018 Aug 30.
Triboelectric nanogenerators (TENG) have been proven to be effective for the collection of low-frequency vibrational energy in the environment. However, most polymer materials as friction layers are highly susceptible to mechanical damage during operation, which reduces the performance and lifetime of TENG. Herein, we report a high-performance, flexible triboelectric nanogenerator with reproducible self-healing electronic characteristics. Based on its soft and flexible polymers, the self-healing triboelectric nanogenerator (SH-TENG) can achieve a peak power of 2.5 W m and triboelectric charge density of about 100 μC m. High-conductance Ag nanowires (AgNWs) are semi-embedded in the polymer to fabricate all-in-one friction layers and for an enhanced self-healing process. Both the output voltage and current of the healed device can reach up to about 99% of their original values even after five cutting/healing cycles. The fabricated SH-TENG has excellent stability and flexibility, which presents a significant step towards the fabrication of reliable triboelectric nanogenerators with recoverability and low maintenance costs.
摩擦纳米发电机（TENG）已被证明在收集环境中的低频振动能量方面是有效的。然而，大多数用作摩擦层的聚合物材料在运行过程中极易受到机械损伤，这降低了TENG的性能和寿命。在此，我们报道了一种具有可重复自愈电子特性的高性能柔性摩擦纳米发电机。基于其柔软且灵活的聚合物，自愈摩擦纳米发电机（SH-TENG）可实现2.5 W/m的峰值功率和约100 μC/m²的摩擦电荷密度。高导电性的银纳米线（AgNWs）半嵌入聚合物中，以制造一体化摩擦层并增强自愈过程。即使经过五次切割/愈合循环，愈合后的器件的输出电压和电流仍可达到其原始值的约99%。所制备的SH-TENG具有出色的稳定性和柔韧性，这朝着制造具有可恢复性和低维护成本的可靠摩擦纳米发电机迈出了重要一步。
