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Highly Ordered Conjugated Polymer Nanoarchitectures with Three-Dimensional Structural Control

A. Vlad ; C. A. Dutu ; P. Guillet ; Piotr Jedrasik (Institutionen för mikroteknologi och nanovetenskap, Nanotekniklaboratoriet) ; C. A. Fustin ; Ulf Södervall (Institutionen för mikroteknologi och nanovetenskap, Nanotekniklaboratoriet) ; J. F. Gohy ; S. Melinte
Nano Letters (1530-6984). Vol. 9 (2009), 8, p. 2838-2843.
[Artikel, refereegranskad vetenskaplig]

Conductive polymers are a class of materials with vast potential for tomorrow's ultra-large-scale technologies as they combine structural and functional diversity with flexible synthesis and processing approaches. A missing component, with their subtle chemical structure, is reliable building at nanoscale. Here we report on the patterning of polyaniline, a prototypical conjugated polymer, with an unprecedented areal patterning order and density exceeding 0.25 teradot/inch(2), With template-confined growth, through platinum-surface-catalyzed polymerization of aniline, highly ordered arrays of distinct polyaniline nanowires are produced with a typical diameter <= 15 nm and aspect ratio higher than 20. Up-scaling is straightforward. Complex three-dimensional structural control is achieved through a direct pattern transfer via resist- and dose-modulated electron beam lithography. The morphology-modulated nanowires self-assemble in key-lock type architectures induced by the structure asymmetry and nonuniformity of the capillary forces associated with the re-entrant features.

Nyckelord: conducting polymers, polyaniline, nanostructures, platinum, films, assemblies, surfaces, growth, lithography, fabrication



Denna post skapades 2010-02-25. Senast ändrad 2016-07-21.
CPL Pubid: 115039

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Nanotekniklaboratoriet

Ämnesområden

Kemiteknik

Chalmers infrastruktur