首页|Controlled Bi-Axial Buckling and Postbuckling of Thin Films Suspended on a Stretchable Substrate with Square Prism Relief Structures
Controlled Bi-Axial Buckling and Postbuckling of Thin Films Suspended on a Stretchable Substrate with Square Prism Relief Structures
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NSTL
World Scientific
Stretchable electronics have spurred rapid developments from curvilinear devices to bio-integrated diagnostic and therapeutic devices。 The wavy configuration in the device components on a stretchable elastomeric substrate surface plays a prominent role in simultaneously achieving high areal coverage and stretchability without compromising the electric performance， resulting in unique applications in stretchable and flexible light-emitting diodes (LEDs)， batteries， supercapacitors， and photovoltaics。 In this study， we investigate the buckling behaviors of stiff thin films on the top surface of a biaxially pre-strained elastomeric substrate with square prism micro-patterned structures。 Based on energy minimization， a theoretical model is established to study the buckling profiles and the maximum strain for different pre-strain levels along two directions， which agrees reasonably well with those obtained by the finite element analysis (FEA)。 After revealing the effect of the center-to-center distance in micro-patterned structures and the interfacial contact width between the film and substrate on the buckling behavior， the elastic stretchability of the system is studied。
Bi-axial buckling and post-bucklingsuspended thin filmsubstrate with square prism relief structuresstretchabilitySOLAR-CELLSMICROSTRIP ANTENNASMECHANICSWIRELESSPATTERNSDEVICESDESIGNSROBUST
NSTL
World Scientific
