Skin-mountable and transparent devices are highly desired for next-generation electronic applications but are susceptible to unexpected ruptures or undesired scratches, which can drastically reduce the device lifetime. Developing wearable and transparent materials with healable function that can recover their original functionality after mechanical damage under mild and noninvasive repairing operation is thus imperative. Herein, we demonstrate that the incorporation of ultrasmall quantities of plasmonic silver nanoparticle (AgNP)@MXene nanosheet hybrids to serve as photothermal fillers in waterborne elastic polyurethane enables high transparency as well as effective light-triggered healing capabilities for wearable composite coatings. The [email protected] hybrid functions as a highly effective photon captor, energy transformer, and molecular heater due to the amalgamation of (1) ultrahigh photothermal conversion efficiency, high thermal conductivity, and structural properties of MXene, (2) the outstanding plasmonic effect of AgNPs, and (3) the synergistic effects from their hybrids. The resulting wearable composite coating with ultralow loading of plasmonic [email protected] hybrids (0.08 wt % or 0.024 vol %) can produce a significant temperature increase of ∼111 ± 2.6 °C after the application of 600 mW cm^–2 light irradiation for 5 min, while maintaining a high optical transmittance of ∼83% at a thickness of ∼60 μm. This local temperature increase can rapidly heal the mechanical damage to the composite coating, with a healing efficiency above 97%.

中文翻译：

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Plasmonic Ti ₃ C ₂ T _x MXene可实现高效，透明的可穿戴设备的光热转换

下一代电子应用非常需要可皮肤贴装和透明的设备，但这些设备容易发生意料之外的破裂或意外刮擦，这会大大缩短设备的使用寿命。因此，必须开发出具有可治愈功能的可穿戴透明材料，以便在轻度且无创的修复操作下机械损坏后能够恢复其原始功能。在本文中，我们证明了在水性弹性聚氨酯中掺入超少量等离激元银纳米颗粒（AgNP）@MXene纳米片杂化物作为光热填料，可实现高透明度以及可穿戴复合涂层的有效光触发愈合能力。受[电子邮件保护]的混合器可充当高效的光子捕获器，能量转换器，（1）超高的光热转换效率，高的热导率和MXene的结构特性，以及（2）AgNPs的显着等离激元效应，以及（3）它们的杂种产生的协同效应。所产生的耐磨复合涂层具有超低负荷的等离激元[受电子邮件保护的]杂化体（0.08 wt％或0.024 vol％），在施加600 mW cm的压力后，可产生约111±2.6°C的显着温度升高^–2光照射5分钟，同时在〜60μm的厚度下保持〜83％的高透光率。这种局部温度升高可以迅速治愈对复合涂层的机械损伤，其愈合效率超过97％。