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Theoretical and experimental study of 2D conformability of stretchable electronics laminated onto skin

查看全文 作　　者：DONG [1,2]WenTao;XIAO [1,2]Lin;ZHU [1,2]Chen;YE [1,2]Dong;WANG [3]ShuoDao;HUANG [1,2]YongAn;YIN [1,2]ZhouPing 高影响力作者 机构地区：[1]State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;[2]Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China;[3]School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK, 74078, USA高影响力机构 出　　处：《Science China(Technological Sciences)》索引2017年第60卷第9期,共8页高影响力期刊 摘　　要：Smoothly attaching the stretchable epidermal electronic devices(EEDs) onto the skin surface is highly desired to improve the measurement accuracy of electrophysiological signal.The paper presents an analytical approach to study interfacial mechanics of the 2D planar EEDs on the checkerboard buckling patterns of human skin.Energy variation method is proposed to determine a criterion whether EEDs laminate conformally onto the skin surface under undeformed and stretched cases.EEDs with low bending stiffness(thin,soft devices/backing layer),smooth and soft skin,and strong adhesion promote conformal contact.Furthermore,the adhesion energy at the EED/skin interface is measured by the homemade peeling experiment platform with different substrate thicknesses and areal coverages.The upper limit of the areal coverage for EED conformal contact with the skin is proposed with given EED/skin properties.Conformability of EEDs are validated by experiments with different substrate thickness,areal coverage and external loadings.It provides a design guideline for EED to conformally contact with the skin surface for more accurate biological signal monitoring. 关 键 词：厚度一致性 皮肤表面 实验平台 可拉伸 电子层 能量变分法 2d 测量精度
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