Flexible all-solid-state electrically tunable photonic crystals for chameleon-inspired artificial skin

초록

Electrically tunable photonic crystals (ETPCs) are promising intelligent materials because of their precise and easy control, fast response time, and convenient implementation. Here, a new class of ETPCs, that is, flexible all-solid-state ETPCs, is proposed through chemically induced polymer swelling and lattice control in photonic crystals using dielectric elastomer actuators (DEAs). The all-solid-state ETPCs show a wide range of color changes from red to blue-green and long-term stable operation with low hysteresis. The conformable color change of the ETPCs on a 3D structure is successfully demonstrated owing to their unique flexibility by covering 3D surfaces with the developed ETPCs. © © (2018) by Chemical and Biological Microsystems Society. All rights reserved.

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