Highly Ordered Conjugated Polymer Nanoarchitectures with Three-Dimensional Structural Control
Artikel i vetenskaplig tidskrift, 2009

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.

polyaniline

growth

lithography

surfaces

platinum

assemblies

conducting polymers

fabrication

films

nanostructures

Författare

A. Vlad

Chalmers University of Technology

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

C. A. Dutu

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

Chalmers University of Technology

P. Guillet

Chalmers University of Technology

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

Piotr Jedrasik

Chalmers, Mikroteknologi och nanovetenskap (MC2), Nanotekniklaboratoriet

C. A. Fustin

Chalmers University of Technology

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

Ulf Södervall

Chalmers, Mikroteknologi och nanovetenskap (MC2), Nanotekniklaboratoriet

J. F. Gohy

Chalmers University of Technology

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

S. Melinte

Chalmers University of Technology

Laboratoire de Dispositifs Intégrés et Circuits Electroniques

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 9 2838-2843

Ämneskategorier

Kemiteknik

DOI

10.1021/nl9008937