Journal ArticleDOI
Structure and Electronic Properties of Electrochromic NiO Films
D. A. Wruck,M. Rubin +1 more
TLDR
In this article, NiO films were deposited by reactive RF magnetron sputtering and X-ray diffraction and infrared absorption measurements indicate that the films are polycrystalline NiO and that the bulk crystal structure does not change upon oxidation and reduction.Abstract:
Nickel oxide films were deposited by reactive RF magnetron sputtering. Optical and electrochemical characterization showed strong electrochromic activity under certain deposition conditions. X-ray diffraction and infrared absorption measurements indicate that the films are polycrystalline NiO and that the bulk crystal structure does not change upon oxidation and reduction. Electronic conduction in the films and charge storage at the NiO/electrolyte interface were studied by dc resistance and ac impedance measurements. The infrared measurements and x-ray photoelectron spectroscopy were used to characterize changes in surface compositionread more
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Journal ArticleDOI
A review of electrode materials for electrochemical supercapacitors
TL;DR: Two important future research directions are indicated and summarized, based on results published in the literature: the development of composite and nanostructured ES materials to overcome the major challenge posed by the low energy density.
Journal ArticleDOI
Electrochromic tungsten oxide films: Review of progress 1993–1998
TL;DR: In this article, the progress that has taken place since 1993 with regard to film deposition, characterization by physical and chemical techniques, optical properties, as well as electrochromic device assembly and performance is reviewed.
Journal ArticleDOI
Nickel-borate oxygen-evolving catalyst that functions under benign conditions.
TL;DR: In this article, the Ni-Bi films can be prepared with precise thickness control and operate at modest overpotential providing an alternative to the Co catalyst for applications in solar energy conversion.
Journal ArticleDOI
Spectroelectrochemistry of Nanostructured NiO
Gerrit Boschloo,Anders Hagfeldt +1 more
TL;DR: Transparent nanostructured NiO electrodes have been prepared by heating Ni(2) sol-gel films at a temperature of 300-320 degreesC as mentioned in this paper, where NiO behaves as a p-type semiconductor.
Journal ArticleDOI
Solution processing of transparent conductors: from flask to film
TL;DR: This critical review focuses on the solution deposition of transparent conductors with a particular focus on transparent conducting oxide (TCO) thin-films, with an introduction into the applications of and material criteria for TCOs.