Abstract：
Eutectogels have garnered considerable attention for the development of wearable devices, owing to their inherent mechanical elasticity, ionic conductivity, affordability, and environmental compatibility. However, the low conductivity of existing eutectogels has impeded their progression in electronic applications. Here, we report a zwitterionic eutectogel with an impressive ionic conductivity of up to 15.7 mS cm-1. The incorporation of zwitterionic groups into the eutectogel creates ample mobile charges by dissociating the cation and anion of solvents, thereby yielding exceptional ionic conductivity. Moreover, the abundant electrostatic and hydrogen bonding interactions within the eutectogel endow it with prominent self-healing and adhesive properties. By integrating the eutectogel with a roughly patterned polydimethylsiloxane film, we have successfully constructed a triboelectric nanogenerator (TENG) with a maximum output power density of 112 mW m-2. This TENG is capable of generating stable electrical signals even in extreme temperature conditions ranging from -80 to 100 °C and effectively powering electronic devices. Furthermore, the assembled TENG displays high sensitivity as a self-powered sensor, enabling real-time and precise monitoring of signals derived from human motions. This study establishes a promising approach for the development of sustainable and multifunctional flexible electronics that are resilient in extreme environments.
摘要：
Eutectogel在可穿戴设备的开发中获得了相当大的关注，由于它们固有的机械弹性，离子电导率,负担能力，和环境兼容性。然而,现有共晶的低电导率阻碍了它们在电子应用中的发展。这里,我们报告了一种两性离子共析体，其离子电导率高达15.7mScm-1。两性离子基团结合到共晶中通过解离溶剂的阳离子和阴离子产生充足的移动电荷，从而产生优异的离子导电性。此外，共晶内部丰富的静电和氢键相互作用使其具有突出的自修复和粘合性能。通过将共晶与大致图案化的聚二甲基硅氧烷膜整合在一起，我们已经成功地构建了一个最大输出功率密度为112mWm-2的摩擦电纳米发电机（TENG）。这款TENG即使在-80至100°C的极端温度条件下也能产生稳定的电信号，并为电子设备有效供电。此外，组装的TENG显示高灵敏度作为自供电传感器，能够实时和精确地监测来自人体运动的信号。这项研究为开发在极端环境中具有弹性的可持续和多功能柔性电子产品建立了一个有前途的方法。
