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dc.contributor.authorRobatjazi, Hossein
Bahauddin, Shah Mohammad
Macfarlan, Luke H.
Fu, Sidan
Thomann, Isabell
dc.date.accessioned 2016-07-06T19:28:53Z
dc.date.available 2016-07-06T19:28:53Z
dc.date.issued 2016
dc.identifier.citation Robatjazi, Hossein, Bahauddin, Shah Mohammad, Macfarlan, Luke H., et al.. "Ultrathin AAO Membrane as a Generic Template for Sub-100 nm Nanostructure Fabrication." Chemistry of Materials, (2016) American Chemical Society: http://dx.doi.org/10.1021/acs.chemmater.6b00722.
dc.identifier.urihttps://hdl.handle.net/1911/90806
dc.description.abstract Anodic aluminum oxide (AAO) templates are emerging as a platform for simple, cost-effective, high-throughput top-down nanofabrication of regular arrays of nanostructures. Thus far, however, AAO pattern transfer has largely been restricted to smooth and chemically inert surfaces, mostly Silicon substrates. Here, we present a more generalizable strategy for preparing free-standing through-hole ultrathin alumina membranes (UTAMs) and transferring them to both smooth and rough substrates, thereby enabling the fabrication of centimeter-scale arrays of nanostructures with sub-100 nm feature diameters on almost arbitrary substrates. To validate the utility of our procedures, we transferred UTAMs to surfaces relevant for photocatalytic applications and prepared plasmonic photocathodes consisting of dense arrays of size-controlled sub-100 nm Au and Ni nanodots on top of chemically noninert NiOx thin films. To demonstrate the functionality of the fabricated structures, we used a plasmonic photocathode consisting of an array of sub-50 nm Au nanodots on NiOx/Al substrates to drive direct, plasmon-enhanced photoelectrocatalysis and found excellent device performance. We also successfully decorated very rough fluorine-doped tin oxide substrates with an array of high-density sub-100 nm nanodots. Our results extend the opportunities for AAO masks to serve as generic templates for novel applications that were previously prohibited by lack of methods to transfer to the required substrate.
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.title Ultrathin AAO Membrane as a Generic Template for Sub-100 nm Nanostructure Fabrication
dc.type Journal article
dc.citation.journalTitle Chemistry of Materials
dc.contributor.org Laboratory for Nanophotonics
dc.contributor.org Rice Quantum Institute
dc.contributor.org Rice Center for Quantum Materials
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1021/acs.chemmater.6b00722
dc.type.publication post-print


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