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Intelligent Biomimetic Chameleon Skin with Excellent Self-Healing and Electrochromic Properties

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journal contribution
posted on 18.09.2018, 00:00 by Rongzong Zheng, Yi Wang, Chunyang Jia, Zhongquan Wan, Junsheng Luo, Haseeb Ashraf Malik, Xiaolong Weng, Jianliang Xie, Longjiang Deng
Animals such as chameleons possess a natural ability to adjust their skin color as a preventive measure to deter any potential threat and to self-heal damaged skin tissues. Inspired by this, we present here a copolymer film possessing biomimetic properties that simultaneously integrates electrochromic triphenylamine and self-healing Diels–Alder groups. The flexible and stretchable copolymer film acts like natural chameleon skin, which exhibits significant color variation and also possesses excellent self-healing properties. These remarkable features make it a promising material for overcoming the crack-generation issue inherited by conventional biomimetic chameleon skin. Moreover, a flexible and wearable skin device based on the copolymer film with silver fabric as a electrode has also been fabricated. The electrochromic and self-healing properties were verified for the copolymer film, and it has been elucidated that the intelligent biomimetic “chameleon skin” was a new step toward the development of highly advanced biomimetic materials and devices.