A study of the optical band gap of lithium tungsten trioxide thin films
Conference
·
OSTI ID:6226280
The insertion of lithium (lithiation) into tungsten trioxide results in the formation of the tungsten bronze Li{sub x}WO{sub 3}. Polycrystalline, rf sputter deposited thin films of Li{sub x}WO{sub 3} were investigated for their application in Smart Window Devices. The optical band gap studies of these films revealed the narrowing of the intrinsic band gap as a consequence of lithium insertion. The results suggest that the rigid band model, which is generally adopted in interpreting the electronic structure of the tungsten bronzes may not be applicable in Li{sub x}WO{sub 3}. 14 refs., 2 tabs.
- Research Organization:
- Tufts Univ., Medford, MA (USA). Electro-Optics Technology Center
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- FG03-85SF15927
- OSTI ID:
- 6226280
- Report Number(s):
- CONF-901273-2; ON: DE91006808
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
CRYSTALS
ELECTRO-OPTICAL EFFECTS
ELECTROCHROMISM
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
FILMS
LITHIUM COMPOUNDS
LITHIUM TUNGSTATES
POLYCRYSTALS
SPUTTERING
THIN FILMS
TUNGSTATES
360603 -- Materials-- Properties
656002* -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
CRYSTALS
ELECTRO-OPTICAL EFFECTS
ELECTROCHROMISM
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
FILMS
LITHIUM COMPOUNDS
LITHIUM TUNGSTATES
POLYCRYSTALS
SPUTTERING
THIN FILMS
TUNGSTATES