Surface wrinkling provides an attractive route to creating patterned surfaces with applications ranging from optoelectronic devices to adhesion enhancement. However, the production of surface wrinkles, with controlled order and micron scale dimensions, in a roll-to-roll (R2R) manufacturing process is challenging. To address these challenges, we have developed a simple and robust method to create surface wrinkles of a bilayer material system. This technique relies upon the contact mechanics of rolling, which would prove quite useful in a R2R process. By controlling applied strains through contact pressure, curvature, and other system parameters, the periodicity and aspect ratio of emerging surface wrinkles can be tuned, leading to well controlled surface topographies.
展开▼
