Optics and materials research for controlled radiant energy transfer in buildings. Annual project status report, January 1, 1991--December 31, 1991
Activities to develop thin film variable reflectivity electrochromic windows have focused in five areas in 1991: (1) evaluating the irreversible incorporation of lithium in the counterelectrode material, sputtered indium oxide; (2) responding to evidence that protons substitute for mobile lithium ions in ``standard`` five-layer electrochromic window structures operating in room air; (3) understanding the electronic and ionic conduction mechanisms in sputtered amorphous lithium niobate, the ion conductor adopted for electrochromic window structures fabricated at Tufts; (4) responding to the discovery that cathodic coloring of the variable reflecting tungsten bronze (Li{sub x}WO{sub 3}) is constrained by interaction with the underlying ITO or SnO{sub 2} transparent conductor in conventional electrochromic window structures; and (5) life testing of electrochromic window prototypes.
- Research Organization:
- Tufts Univ., Medford, MA (United States). Electro-Optics Technology Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG03-85SF15927
- OSTI ID:
- 10120028
- Report Number(s):
- DOE/SF/15927--T7; ON: DE92007209
- Country of Publication:
- United States
- Language:
- English
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