Skin-like wearable devices have great potential in the era of intelligence. In addition to common electronic devices, flexible photonic devices are receiving ever-increasing attention, while intelligent features of devices such as self-healing are also requested. In this work, a smart skin-like wearable photonic device constructed by combining inorganic optical materials and self-healing polyurethanes is reported. Polyurethanes with skin-like modulus are synthesized by mixing chain extender, cross-linker, and hindered phenol AO-70, demonstrating fast self-healing capability (healing efficiency of 99 % within 2 min) and good shape memory effect (shape fixation rate of 90 %). A series of flexible photonic devices are prepared by depositing optical materials on polyurethane surfaces by physical vapor deposition (PVD), with a focus on a photonic device for 1064 nm laser protection. Notably, the device exhibits a spectral recovery rate of 91.76 % after 150 % strain and a spectral recovery rate of 98.13 % after healing in 2 min, indicating superior stretchability and fast self-healing ability. This work provides a new strategy for smart skin-like wearable flexible photonic devices.

中文翻译：

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具有可变光学功能的可穿戴类肤聚氨酯设备


类肤可穿戴设备在智能时代具有巨大潜力。除了常见的电子器件外，柔性光子器件越来越受到人们的关注，同时也要求器件具有自愈等智能化功能。在这项工作中，报道了一种由无机光学材料和自修复聚氨酯相结合构建的智能类皮肤可穿戴光子器件。通过扩链剂、交联剂和受阻酚 AO-70 混合合成具有类皮模量的聚氨酯，具有快速自修复能力（2 分钟内修复效率达 99%）和良好的形状记忆效果（形状固定率为90%）。通过物理气相沉积 (PVD) 在聚氨酯表面沉积光学材料来制备一系列柔性光子器件，重点是用于 1064 nm 激光防护的光子器件。值得注意的是，该器件在 150% 应变后表现出 91.76% 的光谱恢复率，在 2 分钟内愈合后光谱恢复率为 98.13%，表明其具有优异的拉伸性和快速自愈能力。这项工作为智能类皮肤可穿戴柔性光子器件提供了一种新策略。