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Title: Durable Electrooptic Devices Comprising Ionic Liquids

Abstract

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.

Inventors:
 [1];  [2];  [2];  [2];  [1];  [1]
  1. Los Alamos, NM
  2. Tucson, AZ
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
953739
Patent Number(s):
7450292
Application Number:
11/526,416
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Burrell, Anthony K, Agrawal, Anoop, Cronin, John P, Tonazzi, Juan C. L., Warner, Benjamin P, and McCleskey, T Mark. Durable Electrooptic Devices Comprising Ionic Liquids. United States: N. p., 2008. Web.
Burrell, Anthony K, Agrawal, Anoop, Cronin, John P, Tonazzi, Juan C. L., Warner, Benjamin P, & McCleskey, T Mark. Durable Electrooptic Devices Comprising Ionic Liquids. United States.
Burrell, Anthony K, Agrawal, Anoop, Cronin, John P, Tonazzi, Juan C. L., Warner, Benjamin P, and McCleskey, T Mark. Tue . "Durable Electrooptic Devices Comprising Ionic Liquids". United States. https://www.osti.gov/servlets/purl/953739.
@article{osti_953739,
title = {Durable Electrooptic Devices Comprising Ionic Liquids},
author = {Burrell, Anthony K and Agrawal, Anoop and Cronin, John P and Tonazzi, Juan C. L. and Warner, Benjamin P and McCleskey, T Mark},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {11}
}

Works referenced in this record:

Diels–Alder reactions in ionic liquids
journal, January 1999


Room-Temperature Molten Salts Based on the Quaternary Ammonium Ion
journal, October 1998


Preparation and Structures of Crystalline Aromatic Cation-Radical Salts. Triethyloxonium Hexachloroantimonate as a Novel (One-Electron) Oxidant
journal, August 1998


Durability issues and service lifetime prediction of electrochromic windows for buildings applications
journal, January 1999


Room temperature ionic liquids of alkylimidazolium cations and fluoroanions
journal, September 2000


New developments in catalysis using ionic liquids
journal, December 2001


Spectroelectrochemistry of Highly Doped Nanostructured Tin Dioxide Electrodes
journal, April 1999


Photoelectrochromic windows and displays
journal, October 1996


User controllable photochromic (UCPC) devices
journal, May 1999