Electrochromic Coloration of Sputtered Nickel Oxide Films by Injection of Anions (Br- Ions)
- 1 November 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (11R)
- https://doi.org/10.1143/jjap.37.6007
Abstract
Electrochromic (EC) coloration of nickel oxide films has been achieved by the injection of anions (Br- ions). This was effected by the use of a polymeric anion conductor. Nickel oxide films were prepared by rf-sputtering in an Ar/O2/H2 atmosphere from a compressed-powder NiO target. In order to achieve reversible EC phenomena, as-deposited films required an aging process (i.e. several cycles of injection and extraction of charge carriers). After aging, charges (Br- ions) were observed to remain in the films. The residual charge in the films was observed to increase with hydrogen content in the sputtering atmosphere, however, coloring efficiency was observed to decrease. It was proposed that the residual charge (Br- ions) was responsible for deactivation of the EC color centers.Keywords
This publication has 17 references indexed in Scilit:
- Preparation and Electrochromic Properties of RF-Sputtered NiOx Films Prepared in Ar/O2/H2 AtmosphereJapanese Journal of Applied Physics, 1994
- Characterization of evaporated nickel oxide and its application to electrochromic glazingSolar Energy Materials and Solar Cells, 1993
- H Insertion and Electrochromism in NiO x Thin FilmsJournal of the Electrochemical Society, 1992
- The electrochromic properties of hydrous nickel oxideSolar Energy Materials, 1987
- Spectroscopic and electrochemical studies of electrochromic hydrated nickel oxide filmsSolar Energy Materials, 1987
- Chemical and optical properties of electrochromic nickel oxide filmsSolar Energy Materials, 1986
- Modelling of the Solid State Electrochromic System WO3/HSbO3 · 2 H2O/Ni(OH)2Physica Status Solidi (a), 1984
- A Transition in the Kinetics of the Ni(OH)[sub 2]∕NiOOH Electrode ReactionJournal of the Electrochemical Society, 1982
- Review of the structure and the electrochemistry of nickel hydroxides and oxy-hydroxidesJournal of Power Sources, 1982
- Analysis of the Charge-Discharge Characteristics of Nickel-Oxide Electrodes by Infrared SpectroscopyJournal of the Electrochemical Society, 1965