Durable Electrooptic Devices Comprising Ionic Liquids

Burrell, Anthony K; Agrawal, Anoop; Cronin, John P; Tonazzi, Juan C. L.; Warner, Benjamin P; McCleskey, T Mark

Durable Electrooptic Devices Comprising Ionic Liquids

Patent · Tue Nov 11 04:00:00 EST 2008

OSTI ID:953739

Burrell, Anthony K ^[1]; Agrawal, Anoop ^[2]; Cronin, John P ^[2]; Tonazzi, Juan C. L. ^[2]; Warner, Benjamin P ^[1]; McCleskey, T Mark ^[1]

Los Alamos, NM
Tucson, AZ

Electrolyte solutions for electrochromic devices such as rear view mirrors and displays with low leakage currents are prepared using inexpensive, low conductivity conductors. Preferred electrolytes include bifunctional redox dyes and molten salt solvents with enhanced stability toward ultraviolet radiation. The solvents include lithium or quaternary ammonium cations, and perfluorinated sulfonylimide anions selected from trifluoromethylsulfonate (CF.sub.3SO.sub.3.sup.-), bis(trifluoromethylsulfonyl)imide ((CF.sub.3SO.sub.2).sub.2N.sup.-), bis(perfluoroethylsulfonyl)imide ((CF.sub.3CF.sub.2SO.sub.2).sub.2N.sup.-) and tris(trifluoromethylsulfonyl)methide ((CF.sub.3SO.sub.2).sub.3C.sup.-). Electroluminescent, electrochromic and photoelectrochromic devices with nanostructured electrodes include ionic liquids with bifunctional redox dyes. Some of the electrolyte solutions color to red when devices employing the solutions are powered, leading to red or neutral electrooptic devices.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM

Sponsoring Organization:: United States Department of Energy

DOE Contract Number:: AC52-06NA25396

Assignee:: Los Alamos National Security, LLC (Los Alamos, NM)

Patent Number(s):: 7,450,292

Application Number:: 11/526,416

OSTI ID:: 953739

Country of Publication:: United States

Language:: English

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