Surface Effect on the Buckling of a Stretchable Electronic Structure

The structure of a stiff thin film on a compliant substrate has important applications in stretchable electronics. However, such structures are micro-nano-order of magnitude, where surface effects cannot be ignored. Gurtin-Murdoch theory is applied to model the thin film including surface effects. Through energy method, the size-dependent relations between the buckling features, material properties and geometric parameters are deduced. At last the influence of surface effects is illustrated by the case of silicon film and PDMS substrate.

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Badano strukturę cienkiej warstwy nałożonej na podłoże. Taka struktura może mieć rząd nanometrów kiedy efekt podłoża nie może być ignorowany. Zaproponowano model matematyczny struktury bazując na teorii Gurtin-Murdoch.