About: Formation structure properties of niobium oxide nanocolumn arrays via self organized anodization of sputter deposited aluminum on niobium layers

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Nanostructured niobium oxide (NO) semiconductors are gaining increasing attention as electronic, optical, and electro-optic materials. However, the preparation of stable NO nanofilms with reproducible morphology and behavior remains a challenge. Here we show a rapid, well-controlled, and efficient way to synthesize NO films with self-organized columnlike nanostructured morphologies and advanced functional properties. The films are developed via the growth of a nanoporous anodic alumina layer, followed by the pore-directed anodization of the Nb underlayer. The columns may grow 30–150 nm wide, up to 900 nm long, with an aspect ratio of up to 20, being anchored to a thin continuous oxide layer that separates the columns from the substrate. The as-anodized films have a graded chemical composition changing from amorphous Nb2O5 mixed with Al2O3, Si-, and P-containing species in the surface region to NbO2 in the lower film layer. The post-anodization treatments result in the controlled formation of Nb2O5, Nanostructured niobium oxide (NO) semiconductors are gaining increasing attention as electronic, optical, and electro-optic materials. However, the preparation of stable NO nanofilms with reproducible morphology and behavior remains a challenge. Here we show a rapid, well-controlled, and efficient way to synthesize NO films with self-organized columnlike nanostructured morphologies and advanced functional properties. The films are developed via the growth of a nanoporous anodic alumina layer, followed by the pore-directed anodization of the Nb underlayer. The columns may grow 30–150 nm wide, up to 900 nm long, with an aspect ratio of up to 20, being anchored to a thin continuous oxide layer that separates the columns from the substrate. The as-anodized films have a graded chemical composition changing from amorphous Nb2O5 mixed with Al2O3, Si-, and P-containing species in the surface region to NbO2 in the lower film layer. The post-anodization treatments result in the controlled formation of Nb2O5, (en)
Title	Formation structure properties of niobium oxide nanocolumn arrays via self organized anodization of sputter deposited aluminum on niobium layers Formation structure properties of niobium oxide nanocolumn arrays via self organized anodization of sputter deposited aluminum on niobium layers (en)
skos:prefLabel	Formation structure properties of niobium oxide nanocolumn arrays via self organized anodization of sputter deposited aluminum on niobium layers Formation structure properties of niobium oxide nanocolumn arrays via self organized anodization of sputter deposited aluminum on niobium layers (en)
skos:notation	RIV/00216305:26620/14:PU111442!RIV15-GA0-26620___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA14-29531S)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Mozalev, Alexander
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	17280
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/14:PU111442
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	niobium oxide, anodization, semiconductor, analytical investigation, dielectric properties, gas sensors (en)
http://linked.open.../riv/klicoveSlovo	analytical investigation gas sensors dielectric properties semiconductor anodization niobium oxide
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5BFC14BD5EAF]
http://linked.open...i/riv/nazevZdroje	JOURNAL OF MATERIALS CHEMISTRY
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Formation and properties of novel self-organized mixed-oxide 3-D nanostructured films for use in advanced microdevices (AnoNanoFilm)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	2
http://linked.open...iv/tvurceVysledku	Mozalev, Alexander Bittencourt, Ca. Gispert-Guirado, Francesc Habazaki, Hiroki Llobet, Eduard Vazquez, Rosa Maria Cossement, Damien
http://linked.open...ain/vavai/riv/wos	000337096300017
issn	0959-9428
number of pages	14 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c4tc00349g
http://localhost/t...ganizacniJednotka	26620

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