Figure 4 | Scientific Reports

Figure 4

From: Guided fracture of films on soft substrates to create micro/nano-feature arrays with controlled periodicity

Figure 4

Controlled cracking on flat and curved surfaces.

(a,b): Crack dimensions in (a) Au/PDMS bilayers and (b) SiOx/PDMS bilayers vary depending on V-notch spacing. (c,d) Irregular periodic spacing can also provide precisely generated cracks. (e) Increasing crack lengths structures generated by controlled cracking of an Au/PDMS bilayer. (f) Nanocrack arrays extending several millimeters in lengths and centimeters widths formed on SiOx/PDMS bilayers. Scale bar: 200 μm.

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