Template-Assisted Fabrication of Free-Standing Nanorod Arrays of a Hole-Conducting Cross-Linked Triphenylamine Derivative: Toward Ordered Bulk-Heterojunction Solar Cells

Haberkorn, Niko and Gutmann, Jochen S. and Theato, Patrick. (2009) Template-Assisted Fabrication of Free-Standing Nanorod Arrays of a Hole-Conducting Cross-Linked Triphenylamine Derivative: Toward Ordered Bulk-Heterojunction Solar Cells. ACS Nano, 3 (6). p. 1415. ISSN 1936-0851

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Abstract

Free-standing nanorod arrays of a thermally cross-linked semiconducting triphenylamine were fabricated on conductive ITO/glass substrates via an anodic aluminum oxide (AAO) template-assisted approach. By using a solution wetting method combined with a subsequent thermal imprinting step to fill the nanoporous structure of the template with a cross-linkable triphenylamine derivative, a polymeric replication of the AAO was obtained after thermal curing and selective removal of the template. To obtain well-aligned and free-standing nanorod arrays, aggregation and collapse of the nanorods were prevented by optimizing their aspect ratio and applying a freeze-drying technique to remove the aqueous medium after the etching step. Because of their electrochemical properties and their resistance against organic solvents after curing, these high density nanorod arrays have potential application in organic photovoltaics.

Item Type: Article
Additional Information: Reprinted with permission from "Template-Assisted Fabrication of Free-Standing Nanorod Arrays of a Hole-Conducting Cross-Linked Triphenylamine Derivative: Toward Ordered Bulk-Heterojunction Solar Cells. Niko Haberkorn, Jochen S. Gutmann, Patrick Theato. ACS Nano 2009 3 (6), 1415-1422." Copyright 2009 American Chemical Society.
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanoparticles > Nanorods
Nanomanufacturing Processes > Etching
Collections: Nanomanufacturing Research Collection
Related URLs:
Depositing User: Rebecca Reznik-Zellen
Date Deposited: 04 Nov 2009 21:21
Last Modified: 05 Nov 2009 19:36
URI: http://eprints.internano.org/id/eprint/149

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