Electrochromic properties of sputtered amorphous films in the systems WO/sub 3/-Nb/sub 2/O/sub 5/ and Li/sub 2/O-WO/sub 3/-Nb/sub 2/O/sub 5/

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2109058· OSTI ID:6954420

Machida, N; Tatsumisago, M; Minami, T

Electrochromic behavior has been studied by potentiostatic and galvanostatic measurements on sputtered amorphous films in the systems Li/sub 2/O-WO/sub 3/Nb/sub 2/O/sub 5/ and WO/sub 3/-Nb/sub 2/O/sub 5/. The bleaching of films containing Li/sub 2/O was complete, whereas the films without Li/sub 2/O showed a residual color. The kinetics of bleaching in the Li/sub 2/O-WO/sub 3/-Nb/sub 2/O/sub 5/ films was ascribed to a space-charge-limited current flow, while that of WO/sub 3/-Nb/sub 2/O/sub 5/ films could not be explained by a space-charge-limited current model. Such a difference in electrochromic properties is caused by the addition of Li/sub 2/O, which increases the conductivity of Li/sup +/ ions in the films.

• Research Organization: Dept. of Applied Chemistry, Univ. of Osaka Prefecture, Sakai, Osaka 591
• OSTI ID: 6954420
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:9; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
AMORPHOUS STATE
BLEACHING
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
COLOR
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRO-OPTICAL EFFECTS
ELECTROCHROMISM
FILMS
IONIC CONDUCTIVITY
IONS
KINETICS
LITHIUM COMPOUNDS
LITHIUM IONS
LITHIUM OXIDES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SPACE CHARGE
SPUTTERING
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES