Electrochromic materials for controlled radiant energy transfer in buildings: Final technical summary of research, 2 August 1982--31 October 1985
Electrically controlled variable reflectivity electrochromic windows have the potential to significantly reduce heating, cooling, and lighting loads in buildings. The theoretical and experimental research at Tufs during this contract has led to improved modeling and understanding of the properties of thin polycrystalline films of WO/sub 3/ the presently leading candidate for the electrochromic layer of solid-state smart window structure. The research has shown that LiAlF/sub 4/ is a good ion-conducting and electron-insulating material which may be suitable for use as the ion conductor layer in a lithium based electrochromic structure. The research has identified the materials indium oxide (In/sub 2/O/sub 3/) and tin-doped indium oxide as potential ion-insertion material and thus candidates for the counterelectrode (EC) layer as well as the transparent conductor layer of these devices. The research to date demonstrated that it is highly likely that an all-soild-state-thin-film electrochromic smart window can be developed, in the near future. Further important fundamental research needs to be done before a full-fledged development effort is initiated. 17 refs.
- Research Organization:
- Tufts Univ., Medford, MA (USA). Dept. of Electrical Engineering
- DOE Contract Number:
- AC03-82CE30753
- OSTI ID:
- 6844434
- Report Number(s):
- DOE/CE/30753-T1; ON: DE88014666
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
ENERGY CONSERVATION
WINDOWS
REFLECTIVITY
ALUMINIUM FLUORIDES
BUILDINGS
ELECTROCHROMISM
INDIUM OXIDES
IONIC CONDUCTIVITY
LITHIUM
POLYCRYSTALS
PROGRESS REPORT
THIN FILMS
TUNGSTEN OXIDES
ALKALI METALS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CRYSTALS
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRO-OPTICAL EFFECTS
ELEMENTS
FILMS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INDIUM COMPOUNDS
METALS
OPENINGS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
320107* - Energy Conservation
Consumption
& Utilization- Building Systems- (1987-)
360601 - Other Materials- Preparation & Manufacture
360603 - Materials- Properties