Biomimetic Array Electrodes Enable Independent Modulation of Visible‐Infrared Characteristics in Adaptive Multispectral Camouflage Devices

Achieving independent modulation of distinct spectral characteristics in adaptive multispectral camouflage devices remains a key challenge. Drawing inspiration from the skin textures of felines, this research developed a biomimetic array electrode to enable independent visible‐infrared modulation. This is achieved using Prussian blue and MXene/CNT hybrid slurry as functional layers, which respectively modulate visible and infrared regions. Significant differences in optical response ranges and operating principles among the different functional layers provide a foundation for the device's independent modulation. The impact of visual integration between the two functional layers is analyzed via the contour area ratio, while infrared camouflage performance is comprehensively evaluated by analyzing their infrared temperature and chromaticity coordinate differences. The results indicate that the minimum distance required for contour recognition varies with array size. For instance, when a device with an array size of 0.6 mm is observed from a distance of 120 cm, the contour area ratios are only 3.4% (visible region) and 2.1% (infrared region), with a maximum temperature difference of 2.12 °C, which is far below the threshold required for contour detection by detection devices. This research provides crucial insights to advance the development of independent modulation adaptive multispectral camouflage technology.