Emerging tactile sensing devices mimic biological functions of human mechanoreception. By introducing the feature of optical transparency, it can lead to a combined capacities of tactile and visual intelligence into single system. Yet, it is difficult to realize ultrahigh level of optical transparency and device sensitivity in single structure, for the widely used methods for sensitivity improvement, such as elevating the interfacial roughness, may further reduce the transparency. By utilizing a transparent ionic material with tunable surface topologies, as well as introducing a strategy of refractive index matching, we have proposed a transparent iontronic sensing (TIS) device based on the iontronic sensing mechanism, simultaneously offering combined high device sensitivity (83.9 kPa⁻¹), with ultrahigh optical transparency (96.9%), the highest reported value in literature. Benefiting from its comprehensive performance in sensing and optical characteristics, the TIS devices hold enormous potential for the human-machine interfaces for industrial and medical applications.

新兴的触觉传感设备模仿人类机械感受的生物学功能。通过引入光学透明的特性，它可以将触觉和视觉智能的能力结合到一个系统中。然而，在单一结构中难以实现超高水平的光学透明度和器件灵敏度，因为广泛使用的提高灵敏度的方法，例如提高界面粗糙度，可能会进一步降低透明度。通过利用具有可调表面拓扑结构的透明离子材料，以及引入折射率匹配策略，我们提出了一种基于离子传感机制的透明离子传感 (TIS) 器件，同时提供组合的高器件灵敏度 (83.9 kPa ^{- 1})，具有超高的光学透明度（96.9%），为文献报道的最高值。得益于其在传感和光学特性方面的综合性能，TIS 器件在工业和医疗应用的人机界面方面具有巨大潜力。