Simple colloidal lithography approach to generate inexpensive stamps for polymer nano-patterning

摘要

in this work we propose a simple method, based on colloidal crystal monolayer templating, to obtain good quality stamps for polymer patterning. By metal evaporation over colloidal monolayers we fabricate (i) metal-coated colloidal crystals, and (ii) arrays of triangular nanoparticles on glass substrate, obtained by subsequently removing the colloids. The applicability of these two types of nanostructured surfaces as lithographic stamps is demonstrated by transferring their patterns onto polyvinyl alcohol polymer surfaces. The morphology of the resulting polymer nanostructures is analyzed by atomic force microscopy. The proposed nanolithographic technique is remarkable for its simplicity, decreased cost of stamp fabrication, and high resolution of achievable nanopatterns.