Abstract
Wrinkle is a favorable template for patterning cells or particles. A new approach is developed to control and fabricate PS colloidal crystals with the reversible wrinkle on PDMS substrate/Pt film stressed system. The obtained structure is characterized by optical microscope and scanning electron microscope. It demonstrates that the settlement of colloids can be regulated by the buckling wavelength which can be tuned by varying the film thickness and substrate mixture mass ratio. Compared with monolayer PS film patterned on herringbones pattern wrinkle, the film on stripes pattern wrinkle always has low defect rate. It is meaningful for fabricating large-scale regular spacing and high-ordered PS colloid films.
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