Synthesis of Ordered Polymer Micro and Nanostructures Via Porous Templates

Abstract

Abstract-The deposition of specific materials into ordered pores arranged in a regular lattice allows the fabrication of ordered fiber arrays. Polymer micro-and nanofibers using macroporous silicon and nanoporous alumina templates were fabricated employing a vacuum infiltration method for Poly(methyl methacrylate) (PMMA) structures or a melt-assisted template wetting into the pores for Poly(3-hexylthiophene) (P3HT) structures. We have studied how the aspect ratio of the micro-and nanopores and the kind of polymer influence the structures fabrication.

Determining the Effect of Centrifugal Force on the Desired Growth and Properties of PCPDTBT as p-Type Nanowires

“…The diverse choice of infiltration forces has evidently produced an impact on shaping assorted morphologies and distribution of the produced nanostructures. The crumpling phenomena of the nanostructure tips, usually occurring during the etching process and clumping the nanotubes or nanorods into small islands, has been studied by Silverberg and co-workers as an interaction of Van der Waals between the two nanostructures [2, 3, 26–30]. At infiltration rates lower than 4000 rpm (800–3000 rpm), the nanorods are clearly distinguished from the nanotubes which can be evidenced from their tips in which the open-end tips are signed as nanotubes, meanwhile the closed-end tips are nanorods.…”