Abstract: A method of forming one-dimensional metal oxide nanostructures includes forming a TiN film on a substrate to provide a TiN-coated substrate; providing an aqueous mixture including hexamethylenetetramine and a metal nitrate, contacting the TiN-coated substrate with the aqueous mixture such that the TiN film on the substrate is in the aqueous mixture, and heating the aqueous mixture at a temperature ranging from about 50° C. to about 100° C. for a period of time ranging from about 60 minutes to about 180 minutes to form the metal oxide nanostructures. The method offers a low-temperature approach for the growth of metal oxide nanostructures. In an embodiment, the metal oxide is zinc oxide (ZnO) and the metal nitrate is zinc nitrate. In an embodiment the substrate is a Si/SiO2 substrate. In an embodiment, the metal oxide nanostructures include one-dimensional nanostructures, such as nanorods.

Abstract: Methods of obtaining a titanium dioxide nanofilm or microfilm are provided herein. A pure sheet of titanium is irradiated with a CO2 laser to produce the titanium dioxide nanofilm or microfilm. The titanium sheet can optionally be doped with an oxide, such as barium oxide. The method produces titanium dioxide nanofilms or microfilms that can be produced in more than one phase, such as a rutile phase, an anatase phase, or both combined. The titanium dioxide nanofilms or microfilms can be directly fabricated with high purity without any further processing.

Abstract: A method of making a multi-walled carbon nanotubes (MWCNTs) electrode is a deposition-based method for growing MWCNTs on copper (Cu) foils to make binder-free electrodes for energy storage devices, such as those used in batteries and supercapacitors. A chromium layer is sputter coated on a copper foil substrate, and a nickel catalyst layer is sputter coated on the chromium layer, such that the chromium layer forms an electrically conductive barrier layer between the nickel catalyst layer and the copper foil substrate. The multi-walled carbon nanotubes are then formed on the copper foil substrate using plasma enhanced chemical vapor deposition.

Abstract: A magnetic domain memory comprising a planar layer of magnetic material in which magnetic bubbles are moved by a rotating magnetic field in the plane of the layer. At least one circuit or path is provided for guiding the propagation of the bubbles in the layer. This path comprises an overlay pattern of magnetically soft material the periphery of which defines the travel of the bubbles. The surface area of the layer bounding the outside of the overlay pattern comprises an ion-implanted region. This magnetic bubble propagation circuit is made by forming a thin film pattern of a magnetically soft material, such as permalloy, on the surface of a layer of magnetic material, and then directing at the surface of this layer ions having a sufficiently high energy level so as to effect implantation thereof in the lattice structure of the magnetic layer while utilizing the pattern of magnetically soft material to block the ions from penetration of the magnetic layer underlying the pattern.