Controlled Surface Structure of Fluorocarbon Thin Films Deposited on Soft Elastic Substrates by changing its Viscoelasticity
발표자
()
초록
내용
Surface wrinkling is widely used in smart adhesion, optical grating, precision metrology, surface engineering, stretchable electronics, antifouling coating and so forth because it is an efficient and low-cost strategy to control surface morphology. In this research, we report the controlled surface structures of fluorocarbon thin films deposited on soft elastic substrates by changing the viscoelasticity of the polydimethylsiloxane (PDMS) substrates. The viscoelasticity of substrates was controlled with various amount of curing agent and different curing conditions such as temperature and time. The morphology of wrinkles for these samples strongly depended on the viscoelastic properties of substrates. This work provides the effective method for making different wrinkle structures by controlling rheological properties of soft elastic substrates.