Lv Pinlei, Shi Lei, Fan Chengyu, Gao Yiyang, Yang Aijun, Wang Xiaohua, Ding Shujiang, Rong Mingzhe
State Key Laboratory of Electrical Insulation for Power Equipment, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory of Electrical Insulation and Power Equipment, Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
ACS Appl Mater Interfaces. 2020 Apr 1;12(13):15012-15022. doi: 10.1021/acsami.9b19767. Epub 2020 Mar 17.
Wearable devices have become a research hotspot due to their prospective applications in wireless sensor networks and the Internet of Things. However, these technologies demand the generation of new power sources, which are efficient, flexible, sustainable, and stable. Triboelectric nanogenerators (TENGs), as a new type of power supply, have been widely studied for environmental energy harvesting and self-powered sensing; however, they have vastly limited stretchability, flexibility, and stability. For the first time, we report a single-electrode TENG based on hydrophobic ionic liquid gel, which is simultaneously transparent (average transmittance of 89% for visible light), stretchable (400%), and has super-stability-up to 3 months in various weather conditions (from -25 to +60 °C and humidity up to 80%). This TENG was used to power a vast range of flexible electronics, including 30 green light-emitting diodes (LEDs), an arch-shaped finger-bending sensor, and a transparent keyboard. This work provides a creative platform to access the next-generation sustainable wearable electronics.
由于可穿戴设备在无线传感器网络和物联网中的潜在应用，它们已成为一个研究热点。然而，这些技术需要高效、灵活、可持续且稳定的新型电源。摩擦纳米发电机（TENGs）作为一种新型电源，已被广泛研究用于环境能量收集和自供电传感；然而，它们的拉伸性、柔韧性和稳定性极为有限。我们首次报道了一种基于疏水性离子液体凝胶的单电极TENG，它同时具有透明性（可见光平均透过率为89%）、可拉伸性（400%），并且具有超稳定性——在各种天气条件下（从-25至+60°C，湿度高达80%）长达3个月。这种TENG被用于为各种柔性电子产品供电，包括30个绿色发光二极管（LED）、一个拱形手指弯曲传感器和一个透明键盘。这项工作为接入下一代可持续可穿戴电子产品提供了一个创新平台。
