Biomimetic bilayer ionic conductive photoelectronic skin based on nano-structured photonic crystal film and flexible adhesive hydrogel for dual-signal motion detection and anti-disturbance temperature monitor  

作　　者：Tengyu Long Weizhong Yuan 

机构地区：[1]School of Materials Science and Engineering,Key Laboratory of Advanced Civil Materials of Ministry of Education,Tongji University,Shanghai 201804,China

出　　处：《Journal of Materials Science & Technology》2024年第25期149-160,共12页材料科学技术(英文版)

基　　金：financially supported by the National Natural Science Foundation of China(No.82172040).

摘　　要：The growing interest in biological skin mimicry has greatly contributed to the creation of high-performance artificial skin.Here,inspired by the optical-electrical signal co-transmission of chameleon skins,a bilayer biomimetic ion-conductive photoelectronic skin(BIPES)was constructed by compositing the mechanochromic nano-structured silica photonic crystal film with an adhesive,flexible hydrogel by a layer-by-layer design strategy.The BIPES has a highly sensitive strain response on electrical and optical signals(GF=3.27 at 0-100%,△λ/△ε=2.1 nm%^(-1))and temperature response(TCR=-2.27%℃^(-1)at 0-50℃).Importantly,through the temperature insensitivity of the mechanochromic film,the BIPES not only achieved dual-signal motion detection but also achieved real-time temperature monitoring excluding strain interference.This research provides new inspiration for the construction of multi-signal combined photoelectronic skins and further exploration for advanced accurate smart wearable electronics in appli-cations,especially in health detection for patients with non-spontaneous body-trembling.

关 键 词：Photonic crystal film Photoelectronic skin Bilayer ionic conductive Dual-signal motion detection Anti-disturbance temperature monitor 

分 类 号：O48[理学—固体物理]