Rapid advancements in flexible electronics technology propel soft tactile sensing devices toward high-level biointegration, even attaining tactile perception capabilities surpassing human skin. However, the inherent mechanical mismatch resulting from deficient biomimetic mechanical properties of sensing materials poses a challenge to the application of wearable tactile sensing devices in human–machine interaction. Inspired by the innate biphasic structure of human subcutaneous tissue, this study discloses a skin-compliant wearable iontronic triboelectric gel via phase separation induced by competitive hydrogen bonding. Solvent-nonsolvent interactions are used to construct competitive hydrogen bonding systems to trigger phase separation, and the resulting soft-hard alternating phase-locked structure confers the iontronic triboelectric gel with Young's modulus (6.8–281.9 kPa) and high tensile properties (880%) compatible with human skin. The abundance of reactive hydroxyl groups gives the gel excellent tribopositive and self-adhesive properties (peel strength > 70 N m-1). The self-powered tactile sensing skin based on this gel maintains favorable interface and mechanical stability with the working object, which greatly ensures the high fidelity and reliability of soft tactile sensing signals. This strategy, enabling skin-compliant design and broad dynamic tunability of the mechanical properties of sensing materials, presents a universal platform for broad applications from soft robots to wearable electronics.

柔性光电子器件对微纳制造技术提出了更高、更多维度的要求,包括大幅面、表面复杂结构、跨尺度、透明或柔性基底等。主要介绍基于相位元件调制的3D激光直写技术和紫外连续变频光刻技术,它们可分别实现复杂表面浮雕结构和像素化纳米结构的精确制备。此外微纳结构限定性生长或涂布方法提供了一种绿色环保的材料功能化手段。借助微纳结构图形化、功能化平台,最后介绍了新型柔性光电子材料/器件的应用创新。可以预见,微纳光制造技术将推动柔性光电子产业的持续创新发展。