title: The synthesis of matrices of embedded semiconducting nanowires.
abstract: In this work we report how single crystal nanowires can be assembled into regular arrays using mesoporous thin films to define the architecture. Mesoporous thin films were prepared by a sol-gel method. These provide films of very regular structure and dimensions. The films produced in this way have almost single crystal like structures and can also exhibit strong epitaxy to the underlying silicon substrate. The films are subjected to a supercritical fluid (SCF) environment in which a precursor is decomposed to yield nanowires of metals, semiconductors or oxides. Using these SCF conditions, pore filling is complete and the products are nanowires which are single crystals and structurally aligned in one direction. The growth mechanism of the nanowires is described and size effects discussed.
authors.affiliation: Department of Chemistry, University College Cork, Cork, Ireland.
authors.forename: Kirk
authors.initials: K
authors.lastname: Ziegler
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Ryan
authors.forename: Rory
authors.initials: R
authors.lastname: Rice
authors.forename: Timothy
authors.initials: T
authors.lastname: Crowley
authors.forename: Donat
authors.initials: D
authors.lastname: Erts
authors.forename: Hakan
authors.initials: H
authors.lastname: Olin
authors.forename: Jenny
authors.initials: J
authors.lastname: Patterson
authors.forename: Trevor R
authors.initials: TR
authors.lastname: Spalding
authors.forename: Justin D
authors.initials: JD
authors.lastname: Holmes
authors.forename: M A
authors.initials: MA
authors.lastname: Morris