For the first time, cobalt oxide films that are highly protective against localized corrosion and depicting a wide variety of bright and uniform colors due to light interference, have been successf...

Optical and physical properties of cobalt oxide films electrogenerated in bicarbonate aqueous media.

The present invention relates to apparatus, compositions and methods of fabricating high performance thin-film batteries on metallic substrates, polymeric substrates, or doped or undoped silicon substrates by fabricating an appropriate barrier layer composed, for example, of barrier sublayers between the substrate and the battery part of the present invention thereby separating these two parts chemically during the entire battery fabrication process as well as during any operation and storage of the electrochemical apparatus during its entire lifetime. In a preferred embodiment of the present invention thin-film batteries fabricated onto a thin, flexible stainless steel foil substrate using an appropriate barrier layer that is composed of barrier sublayers have uncompromised electrochemical performance compared to thin-film batteries fabricated onto ceramic substrates when using a 700° C. post-deposition anneal process for a LiCoO 2 positive cathode.

Electrochemical Apparatus With Barrier Layer Protected Substrate

The main objective of this work is the preparation of decorative zirconium oxynitride, ZrOxNy, thin films by dc reactive magnetron sputtering. Film properties were analyzed as a function of the reactive gas flow and were correlated with the observed structural changes. Measurements showed a systematic decrease in the deposition rate with the increase of the reactive gas flow and revealed three distinct modes: (i) a metallic mode, (ii) a transition mode (subdivided into three zones), and (iii) an oxide mode. The measurements of target potential were also consistent with these changes, revealing a systematic increase from 314to337V. Structural characterization uncovered different behaviors within each of the different zones, with a strong dependence of film texture on the oxygen content. These structural changes were also confirmed by resistivity measurements, whose values ranged from 250to400μΩcm for low gas flows and up to 106μΩcm for the highest flow rates. Color measurements in the films revealed a chan...

/pdf/structural-electrical-optical-and-mechanical-1z6hhtffgj.pdf

Structural, electrical, optical, and mechanical characterizations of decorative ZrOxNy thin films

An electrochemical device is claimed and disclosed wherein certain embodiments have a cathode greater than about 4 μm and less than about 200 μm thick; a thin electrolyte less than about 10 μm thick; and an anode less than about 30 μm thick. Another claimed and disclosed electrochemical device includes a cathode greater than about 0.5 μm and less than about 200 μm thick; a thin electrolyte less than about 10 μm thick; and an anode less than about 30 μm thick, wherein the cathode is fabricated by a non-vapor phase deposition method. The electrochemical device may also include a substrate, a current collector, an anode current collector, encapsulation and a moderating layer.

Hybrid thin-film battery

Extreme cooling rates during physical vapor deposition (PVD) allow growth of metastable phases. However, we propose that reactive PVD processes can be described by a gas-solid paraequilibrium defin ...

https://www.tandfonline.com/doi/pdf/10.1080/21663831.2016.1233914

Unprecedented thermal stability of inherently metastable titanium aluminum nitride by point defect engineering

Zirconium nitrides deposited by dual ion beam sputtering: physical properties and growth modelling

Ion beam sputtering codeposition has been used to elaborate ceramic–metal (cermet) composite thin films consisting of copper nanoclusters embedded in an amorphous Si3N4 matrix. As prepared, the clusters have a size smaller than 3 nm and postirradiation by high energetic Ar+ ions leads to an homogenization of the clusters’ morphology and an increase of the clusters’ size to an average diameter of 4.5 nm. This work deals with the relation between the morphology of the clusters, characterized by extended x-ray absorption fine spectroscopy and grazing incidence small angle x-ray scattering, and the optical properties (obtained by spectroscopic ellipsometry) of the cermets, which are classically modeled with the help of the effective medium theory. In the case of the as-prepared sample, the Bruggeman effective medium theory has been successfully used. This comes from the fact that the clusters are sufficiently close to each other to create mutual interactions. On the other hand, the morphology of the postirrad...

Relation between the optical properties of composite Si3N4 thin films with embedded Cu clusters and the clusters morphology: Irradiation effects

Zirconium nitrides reveal interesting optical and electrical properties which highly depend on the nitrogen stoichiometry. Indeed, the material exhibits a transition from metallic ZrN (optical index for bulk at 633 nm: N =0.5 −  i 3.2) to transparent insulator Zr 3 N 4 ( N =3.2 −  i 0.2). This work deals with the controlled elaboration of homogeneous ZrN-like and Zr 3 N 4 -like coatings. These have been prepared using reactive Dual Ion Beam Assisted Deposition (IBAD) using a Zr target and N 2 or N 2  + Ar reactive gas. We particularly studied the influence of different elaboration parameters (ion energy, gas composition of the reactive beam and substrate temperature) on the nitrides composition and on their optical and electrical properties. This study now allows a reproducible elaboration of different kinds of zirconium nitrides which can lead to the realisation of an in-depth modulated optical index structure

Ion beam assisted deposition of zirconium nitrides for modulated optical index structures

Evidence of ω-phase in ion beam sputtered zirconium thin films

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Papers

Zirconium nitrides deposited by dual ion beam sputtering: physical properties and growth modelling

Relation between the optical properties of composite Si3N4 thin films with embedded Cu clusters and the clusters morphology: Irradiation effects

Ion beam assisted deposition of zirconium nitrides for modulated optical index structures

Evidence of ω-phase in ion beam sputtered zirconium thin films