Artificial visual memory systems have been of particular interest since the development of machine vision and bionic robots. Ordinarily, the conventional system architecture requires the complex integration of two functional modules, a photo‐sensor and a memory device, which greatly limits the operating efficiency and increases the extra energy consumption. Nonetheless, other simply configured optoelectronics memory devices generally face challenges of adaption in complex light environments. Here, a resistive switching (RS) perovskite‐based photomemristor is presented that mimics the retina function. The dual function of light perception and in situ storage are both achieved. In the dark condition, it exhibits impressive memory performance with a high ON/OFF ratio of 104, a long retention time of over 104 s, and a low operating voltage of 0.38 V. With illumination, it shows self‐powered, broadband photo‐detecting characteristics with responsivity of 70 mA W−1 and detectivity of 7.5 × 1010 Jones. More importantly, benefiting from the material dual‐phase configuration, the highly steady photo‐adjusted RS windows are achieved. Its light‐adaptive memory application in dynamic environments is further demonstrated using the mimicking retina for a machine eye. This work can provide a strategy for enhanced RS photomemristor and its application in changing and varied scenarios.

中文翻译：

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通过电阻开关光忆阻器阵列实现光自适应模仿视网膜并具有原位图像记忆

自从机器视觉和仿生机器人的发展以来，人工视觉记忆系统一直受到人们的特别关注。通常，传统的系统架构需要光传感器和存储器件两个功能模块的复杂集成，这极大地限制了运行效率并增加了额外的能耗。尽管如此，其他简单配置的光电存储器件通常面临着适应复杂光环境的挑战。在这里，提出了一种模拟视网膜功能的基于钙钛矿的电阻开关（RS）光忆阻器。实现了光感知和原位存储的双重功能。在黑暗条件下，它表现出令人印象深刻的存储性能，开/关比高达 104，保留时间超过104s，工作电压低至 0.38 V。在照明下，它表现出自供电、宽带光电检测特性，响应率为 70 mA W−1探测灵敏度为 7.5 × 1010琼斯.更重要的是，受益于材料双相配置，实现了高度稳定的光调节RS窗口。使用机器眼的模仿视网膜进一步证明了其在动态环境中的光自适应记忆应用。这项工作可以为增强型RS光忆阻器及其在变化和多样化场景中的应用提供策略。