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Wrinkles formation and evolution of nanoribbons with finite length on elastomeric substrate
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) Principle of white light interferometer. (b) Image of wrinkles of Si nanoribbons by white light interferometer. (c) SEM image of wrinkles of Si nanoribbons.

Image of FIG. 2.
FIG. 2.

(Color online) Origin and evolution of wrinkles of Si nanoribbon. x and y axis are the horizontal position and the corresponding vertical height. (a) The flat configuration without released pre-strain. (b) 5% pre-strain is released. (c) The released pre-strain increase to 7%. (d) 11% pre-strain is released. (e) 13% pre-strain is released. (f) 16% pre-stain is totally released and the amplitude 2A and wavelength λ are defined.

Image of FIG. 3.
FIG. 3.

(Color online) Comparison of the current experimental results to the theoretical prediction. (a) The amplitude versus the released pre-strain. (b) The wavelength versus the released pre-strain. Black symbol line is the theoretical prediction and red square represents the experimental data.

Image of FIG. 4.
FIG. 4.

(Color online) Dynamic mechanics simulation of nanoribbons wrinkles on the PDMS stamp. (a) The model for nanoribbons on complaint substrate and the interface interaction modeled as springs. (b)-(g) The dynamics simulation results that the wrinkles originate and evolve subjected to the released pre-strain step by step.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Wrinkles formation and evolution of nanoribbons with finite length on elastomeric substrate