Issue 15, 2014

Controllable wrinkle configurations by soft micro-patterns to enhance the stretchability of Si ribbons

Abstract

Wrinkle configurations can provide brittle Si ribbons with excellent stretchability via mechanical buckling. We propose a strategy using micro-patterns to control the wrinkle configurations in ‘pop-up’ and ‘pop-down’ styles, as well as the wrinkle's wavelength. After the wrinkle configuration is stretched flat, the micro-patterns will deform to buffer the Si ribbons, which enhances the additional stretchability of such structures. The experimental results show that the micro-patterns determine the wrinkle configurations of Si ribbons and their stretchability can reach 51.2%. The analytical modeling and FEM simulation reveal the mechanism of such a phenomenon.

Graphical abstract: Controllable wrinkle configurations by soft micro-patterns to enhance the stretchability of Si ribbons

Article information

Article type
Paper
Submitted
18 Nov 2013
Accepted
05 Dec 2013
First published
12 Dec 2013

Soft Matter, 2014,10, 2559-2566

Controllable wrinkle configurations by soft micro-patterns to enhance the stretchability of Si ribbons

Y. Huang, H. Chen, J. Wu and X. Feng, Soft Matter, 2014, 10, 2559 DOI: 10.1039/C3SM52906A

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