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Most materials and devices with structurally switchable color features responsive to external stimuli can actively and flexibly display various colors. However, realizing covert–overt transformation behavior, especially switching between transparent and colored states, is more challenging. A composite laminate of soft poly(dimethylsiloxane) (PDMS) with a rigid SiO2‐nanoparticle (NP) structure pattern...
Self‐assembled SiO2‐nanoparticle patterns encapsulated by poly(dimethylsiloxane) are developed by Kyungjun Song, Taesung Kim, and co‐workers in article number 2001467 as a novel and simple color platform, which can switch between transparent and colored states by mechanical. Upon compression, wrinkles are generated as gratings, enabling the instant display and hiding of information, such as QR codes...
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