Toward single-step anodic fabrication of monodisperse TiO2 nanotube arrays on non-native substrates

Download
  1. Get@NRC: Toward single-step anodic fabrication of monodisperse TiO2 nanotube arrays on non-native substrates (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1002/pssa.201330649
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titlePhysica Status Solidi (A) Applications and Materials Science
ISSN1862-6300
AbstractShape irregularity and size dispersion exhibited by TiO2 nanotube arrays (TNAs) is a disadvantage for size-selective applications such as flow-through membranes, cell differentiation and drug delivery, and for photonic applications such as photonic crystals and metallodielectric metamaterials, where size and shape dispersity are sources of defects and scattering. We show that achieving extremely smooth Ti films is more critical than a large Ti grain size in attaining highly ordered nanotube arrays with minimal dispersity in shape and size, and obtain the insight that uniform pore nucleation is determinative of the quality of the nanostructures that result following electrochemical anodization. TiO2 nanotubes formed by anodization of highly smooth Ti films on single crystal silicon wafers in electrolytes with high water concentrations had only circular pores with a narrow dispersion of pore diameters, and exhibited uniform cross-sections along the tube-axis. Pattern order was evaluated using 2D-FFT analysis. TiO2 nanotubes on Si wafers with a (a) narrow and (b) wide dispersion in shape and size. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); National Institute for Nanotechnology (NINT-INNT)
Peer reviewedYes
NPARC number21270845
Export citationExport as RIS
Report a correctionReport a correction
Record identifier841b2aa8-5969-43e1-9f8e-119782d13de2
Record created2014-02-17
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)