Abstract
AbstractStructural colors are widespread in nature and have become an important component of the lives. Considerable efforts have been made toward reversible color tuning, which underpins intriguing applications, including color displays, anti‐counterfeiting, and information encryption. However, the limited size, complicated fabrication processes, and low modulation speeds of structural colors are the main obstacles to their further development. Herein, a facile method to realize dynamically tunable structural colors is presented, which are enabled by the pixelated programming of soft materials on thickness. Pixelated photoresist microarrays with different heights are obtained using a digitalized lithography technique, enabling delicate control over the thickness of the liquid crystal (LC) layers. Stimuli‐responsive LCs endow structural colors with dynamic and reversible tunability and exhibit remarkable switching speeds with external stimuli. The proposed strategy sheds new light on dynamically tunable structural colors and promotes the development of optical anti‐counterfeiting, thermal sensors, and advanced information encryption.
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