Solid state electrical switch employing electrochromic material

Details Solid state electrical switch employing electrochromic material Solid state electrical switch employing electrochromic material

1977-04-29

1979-08-07

Clawson, Jr., Joseph E.

Boots, shoes, and leggings

357 1, 350357, 364435, H01L 4500

Patent

active

041639820

ABSTRACT:
A solid state electrical switch is described which exhibits high off/on resistance ratios and low insertion loss. An additional advantage is that removal of the switching energy does not alter the status (off or on) of the switch. The active solid state material in the switch is an electrochromic material (e.g., tungsten trioxide) which undergoes a transformation from insulator to metallic conductor on injection of certain ions.

REFERENCES:
patent: 3521941 (1970-07-01), Deb et al.
patent: 3980505 (1976-09-01), Buckley
S. Deb, "Opt. and Photoel. Prop. of C.C. in Thin Films of Tungsten Oxide," Philosophical Magazine, vol. 27, 1973, pp. 801-822.
M. Green, et al., "A Solid State Electrochromic Cell-The RbAg.sub.4 I.sub.5 /WO.sub.3 System," Thin Solid Films, vol. 24, 1974, pp. 545-546.
B. Faughnan, et al., "Electrochromism in WO.sub.3 Amorphous Films," R.C.A. Review, vol. 36, Mar. 1975, pp. 177-197.
Y. Hajimoto, et al., "Coloration in a WO.sub.3 film, " Applied Physics Letters, vol. 28, No. 4, Feb. 15, 1976, pp. 228-229.

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