Liquid‐state electronics utilizing functional liquids confined in soft templates as the sensing and actuating component present the ideal platform for enabling conformal coverage of electronic systems on curved and soft surfaces. However, to date, optoelectronic devices based on functional liquid materials as represented by photodetectors and optical memories still have not been proposed; this advancement is crucial to scaling up current liquid‐state devices to a system level. Optoelectronic devices based on liquid metal and photo‐switchable ionic liquid with liquid–liquid heterojunction technology are proposed. The sensing and memory schemes presented are generic for different liquid‐state devices and that enables different functionality to be added to the liquid‐state electronics. As a proof of concept, demonstrations are made of a light sensor composed of the ionic liquid and an optical memory using a composite of the ionic liquid and polypropylene glycol. These devices are important advancements toward the realization of liquid‐state electronic systems.

中文翻译：

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使用液态金属的液态光电

利用在软模板中限定的功能液体作为感应和促动组件的液态电子器件为在曲面和软表面上保形覆盖电子系统提供了理想的平台。但是，迄今为止，还没有提出基于以光检测器和光学存储器为代表的功能性液体材料的光电装置。这一进步对于将当前的液态设备扩展到系统级别至关重要。提出了一种基于液态金属和具有光-液异质结技术的光可切换离子液体的光电器件。提出的传感和存储方案适用于不同的液态设备，并且可以将不同的功能添加到液态电子设备中。作为概念证明，演示由离子液体组成的光传感器和使用离子液体和聚丙二醇的复合物的光学存储器组成。这些设备是实现液态电子系统的重要进步。