An electrochromic window based on Li sub x WO sub 3 /(PEO) sub 8 LiCIO sub 4 /NiO

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Journal of the Electrochemical Society; (USA)

DOI:https://doi.org/10.1149/1.2096458· OSTI ID:6952888

Passerini, S; Scosati, B ^[1]; Gorenstein, A ^[2]; Anderson, A M; Granqvist, C G ^[3]

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1. Dipartimento di Chimica, Universita' di Roma La Sapienza, (IT)
2. DFA/IFWG, UNICAMP, CP 6165, Campinas, SP (BR)
3. Dept. of Physics, Chalmers Univ. of Technology, Gothenburg (SW)

Electrochromic materials are characterized by reversible but persistent changes of the optical properties when subjected to suitable electrochemical reactions. Electrochromism can be utilized in windows, most conveniently by exploiting all-solid-state multilayer coating backed by glass. The multilayer coating should comprise the following sequence of layers: a transparent and electrically conducting base layer, an electrochromic layer, and electrolyte, a conterelectrode, and a transparent conducting top layer. For window applications, the electrolyte should be transparent, and the conterelectrode must be either optically passive (colorless irrespective of its ionic content) or electrochromic in a sense that is complementary to the electrochromism of the electrochromic layer. The latter condition implies that if the electrochromic layer is cathodic (anodic), the counterelectrode must be anodic (cathodic). This paper reports preliminary data taken on samples with electrochromic layers based on tungsten oxide, WO{sub 3}, and nickel oxide, NiO, and an intermediate solid electrolyte of poly(ethylene oxide) doped with lithium perchlorate, (PEO){sub 8}LiClO{sub 4}, where 8 signifies the number of oxygen heteroatoms per lithium ion.

• OSTI ID: 6952888
• Journal Information: Journal of the Electrochemical Society; (USA), Journal Name: Journal of the Electrochemical Society; (USA) Vol. 136:11; ISSN JESOA; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
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Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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656001 -- Condensed Matter Physics-- Solid-State Plasma
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
CHEMISTRY
CHLORATES
CHLORINE COMPOUNDS
CRYSTAL DOPING
ELECTRICAL PROPERTIES
ELECTRO-OPTICAL EFFECTS
ELECTROCHEMISTRY
ELECTROCHROMISM
ELECTROLYTES
FABRICATION
GLASS
HALOGEN COMPOUNDS
HETEROJUNCTIONS
IONS
JUNCTIONS
LAYERS
LITHIUM COMPOUNDS
LITHIUM IONS
LITHIUM OXIDES
NICKEL COMPOUNDS
NICKEL OXIDES
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA
POLYETHYLENES
POLYMERS
POLYOLEFINS
REFRACTORY METAL COMPOUNDS
SEMICONDUCTOR JUNCTIONS
SOLID ELECTROLYTES
SOLID-STATE PLASMA
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES