Durable electrooptic devices comprising ionic liquids

Details Durable electrooptic devices comprising ionic liquids Durable electrooptic devices comprising ionic liquids

2008-11-06

2009-12-15

Ben, Loha (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S265000, C359S272000, C359S273000, C429S213000

Reexamination Certificate

active

07633669

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 (CF3SO3−), bis(trifluoromethylsulfonyl)imide ((CF3SO2)2N−), bis(perfluoroethylsulfonyl)imide ((CF3CF2SO2)2N−) and tris(trifluoromethylsulfonyl)methide ((CF3SO2)3C−). 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.

REFERENCES:
patent: 3843232 (1974-10-01), Berets
patent: 4088392 (1978-05-01), Meyers
patent: 4225216 (1980-09-01), Boyd et al.
patent: 4308658 (1982-01-01), Yano et al.
patent: 4671619 (1987-06-01), Kamimori et al.
patent: 4902108 (1990-02-01), Byker
patent: 5140455 (1992-08-01), Varaprasad et al.
patent: 5142407 (1992-08-01), Varaprasad et al.
patent: 5353148 (1994-10-01), Eid et al.
patent: 5500760 (1996-03-01), Varaprasad et al.
patent: 5604626 (1997-02-01), Teowee et al.
patent: 5729379 (1998-03-01), Allemand et al.
patent: 5827602 (1998-10-01), Koch et al.
patent: 5838483 (1998-11-01), Teowee et al.
patent: 5864419 (1999-01-01), Lynam
patent: 5940201 (1999-08-01), Ash et al.
patent: 5998617 (1999-12-01), Srinivasa et al.
patent: 6045724 (2000-04-01), Varaprasad et al.
patent: 6067184 (2000-05-01), Bonhote et al.
patent: 6118572 (2000-09-01), Kostecki et al.
patent: 6122093 (2000-09-01), Lynam
patent: 6141137 (2000-10-01), Byker et al.
patent: 6172794 (2001-01-01), Burdis
patent: 6178034 (2001-01-01), Allemand et al.
patent: 6241916 (2001-06-01), Claussen et al.
patent: 6245262 (2001-06-01), Varaprasad et al.
patent: 6246505 (2001-06-01), Teowee et al.
patent: 6266177 (2001-07-01), Allemand et al.
patent: 6297900 (2001-10-01), Tulloch et al.
patent: 6310714 (2001-10-01), Lomprey et al.
patent: 6317248 (2001-11-01), Agrawal et al.
patent: 6327070 (2001-12-01), Heuer et al.
patent: 6344918 (2002-02-01), Berneth et al.
patent: 6362914 (2002-03-01), Baumann et al.
patent: 6365301 (2002-04-01), Michot et al.
patent: 6369934 (2002-04-01), Bechinger et al.
patent: 6372159 (2002-04-01), Berneth et al.
patent: 6420036 (2002-07-01), Varaprasad et al.
patent: 6519072 (2003-02-01), Nishikitani et al.
patent: 6525861 (2003-02-01), Roberts et al.
patent: 6605239 (2003-08-01), Fitzmaurice et al.
patent: 6667825 (2003-12-01), Lu et al.
patent: 6816298 (2004-11-01), Nishikitani et al.
patent: 6828062 (2004-12-01), Lu et al.
patent: 2002/0012155 (2002-01-01), Baumann et al.
patent: 2002/0021482 (2002-02-01), Fitzmaurice et al.
patent: 2003/0030883 (2003-02-01), Giri et al.
patent: 10-168028 (1998-06-01), None
patent: WO 99/45081 (1999-09-01), None
patent: WO 01/27690 (2001-04-01), None
patent: WO 01/63350 (2001-08-01), None
patent: WO 01/93363 (2001-12-01), None
Hagiwara et al., “Room Temperature Ionic Liquids of Alkylimidazolium Cations and Fluoroanions,” Journal of Fluorine Chemistry, vol. 105, pp. 221-227, Sep. 2000.
Charles M. Gordon, “New Developments in Catalysis Using Ionic Liquids,” Applied Catalysis A: General, vol. 222, pp. 101-117, Dec. 2001.
Earle et al., “Diels-Alder Reactions in Ionic Liquids,” Green Chemistry, pp. 23-25, Feb. 1999.
Sun et al., “Room-Temperature Molten Salts Based on the Quaternary Ammonium Ion,” J. Phys. Chem. B. vol. 102, pp. 8858-8865, Aug. 1998.
Pugachev et al., “An Electrochromic System Based on Methyl Viologen Influence of the Polymer, Base Electrolyte, and Solvent Type on Its Chief Characteristics,” Ul'yanovsk Polytechnic Institute, (translated from Elektrokhimiya, vol. 22, No. 1, pp. 58-62, Jan. 1986).
“Ultraviolet Stabilizers,” Modern Plastics World Encyclopedia, pp. C-120-C-122, 2001.
Muldoon et al., “Hydrogen Abstraction From Ionic Liquids by Benzophenone Triplet Excited States,” ChemComm., vol. 22 pp. 2364-2365, Oct. 2001.
Behar et al., “Reaction Kinetics in Ionic Liquids as Studied by Pulse Radiolysis: Redox Reactions in the Solvents Methyltributylammonium Bis(trifluoromethylsulfonyl)imide and N-Butylpyridinium Tetrafluoroborate,” J. Phys. Chem. A., vol. 106, pp. 3139-3147, Jan. 2002.
Mark Niemeyer, “σ-Donor Versus η6-π-Arene Interactions in Monomeric Europium(II) and Yetterbium(II) Thiolates—An Experimental and Computational Study,” Eur. J. Inorg. Chem., vol. 2001 pp. 1969-1981, Aug. 2001.
Czanderna et al., “Durability Issues and Service Lifetime Prediction of Electrochromic Windows for Buildings Applications,” Solar Energy Materials & Solar Cells, vol. 56, pp. 419-436, Dec. 1999.
Bechinger et al., “Photoelectrochromic Windows and Displays,” Nature, vol. 383, pp. 608-610, Oct. 1996.
Teowee et al., “User Controllable Photochromic (UCPC) Devices,” Electrochimica Acta, vol. 44, pp. 3017-3026, May 1999.
Ding et al., “Electrochemistry and Electrogenerated Chemiluminescence from Silicon Nanocrystal Quantum Dots,” Science, vol. 296, pp. 1293-1297, May 2002.
Lee et al., “Electrogenerated Chemiluminescence. 61. Near-IR Electrogenerated Chemiluminescence, Electrochemistry, and Spectroscopic Properties of a Heptamethine Cyanine Dye in MeCN,” Analytical Chemistry, vol. 69, pp. 4126-4133, Oct. 1997.
Michaelis et al., “Electrochromic Dye System for Smart Window Applications,” Adv. Mater., vol. 13, Dec. 2001.
Boschloo et al., “Spectroscopy of Highly Doped Nanostructured Tin Dioxide Electrodes,” The Journal of Physical Chemistry, vol. 103, pp. 3093-3098, Apr. 1999.
Rathore et al., “Preparation and Structures of Crystalline Aromatic Cation-Radical Salts. Triethyloxonium Hexachloroantimonate as a Novel (One-electron) Oxidant,” J. Org. Chem., vol. 63, pp. 5847-5856, Aug. 1998.
Rathore et al., “A Redox-Controlled Molecular Switch Based on the Reversible C-C Bond Formation in Octamethoxytetraphenylene,” Angew. Chem. Int. Ed., vol. 39, pp. 809-810, Aug. 2000.

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