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Semi-electroactive material containing organic compounds with positive or negative redox activity, method and kit for making such material, electrically controlled device and glazing using such semi-e

A technology of electroactive materials and electronic control equipment, applied in the direction of chemical instruments and methods, color-changing fluorescent materials, glass/slag layered products, etc., can solve any problems that do not describe the combination of components that complement coloring

Inactive Publication Date: 2010-03-31
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A list of these polymers and compounds exists in the document, but it does not describe any need to combine components with complementary coloring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Embodiment 1: the preparation of electrochromic device

[0108] -with SnO 2 : F layer, glass coated with PEDOT / PSS layer;

[0109] - semi-electroactive system: ferrocene + lithium perchlorate + propylene carbonate; and

[0110] -with SnO 2 :F layer of glass.

[0111] Electrochromic devices were fabricated using bare K-glass flakes and K-glass flakes deposited with PEDOT / PSS layers (360 micron wet deposition). Before assembly, the PEDOT / PSS layer was reduced in a 1 M solution of acetonitrile and lithium perchlorate.

[0112] The PVDF self-supporting film is prepared by mixing 3.5g PVDF ( 2501), 6.5g of dibutyl phthalate and 12g of acetone. The formation was stirred for two hours before being cast on glass slides. After evaporation of the solvent, the PVDF film was removed from the glass slide under a drip of water.

[0113] A semi-electroactive solution was prepared by mixing 0.23 g of ferrocene and 0.27 g of lithium perchlorate into 40 ml of propylene carbonat...

Embodiment 2

[0116] Embodiment 2: the preparation of electrochromic device

[0117] -with SnO 2 : F layer, glass coated with PEDOT / PSS layer;

[0118] - semi-electroactive system: ferrocene + lithium trifluoromethanesulfonate + propylene carbonate; and

[0119] -with SnO 2 :F layer of glass.

[0120] Electrochromic devices were fabricated using bare K-glass flakes and PEDOT / PSS-deposited K-glass flakes (360 micron wet deposition). Prior to assembly, the PEDOT / PSS layer was reduced in a solution of acetonitrile and lithium perchlorate at a concentration of 1M.

[0121] The PVDF self-supporting film is prepared by mixing 3.5g PVDF ( 2821), 6.5g of dibutyl phthalate and 12g of acetone. The formation was stirred for two hours and cast on glass slides. After evaporating the solvent, the PVDF film was removed from the glass slide under a drip of water.

[0122] A semi-electroactive solution was prepared by mixing 0.23 g of ferrocene and 0.39 g of lithium trifluoromethanesulfonate into...

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Abstract

The semi-electroactive material of the invention includes a self-sustained polymer matrix in which is inserted an electroactive system including or made of: at least one electroactive organic compoundcapable of oxidation and / ejecting electrons and cations serving as compensation charges; or at least one electroactive organic compound capable of reduction and / or accepting electrons and cations serving as compensation charges; and ionic charges; and a liquid for solubilizing said semi-electroactive system, wherein said liquid does not solubilize the self-sustained polymer matrix, the latter being selected so as to provide a percolation path for the ionic charges, which results, upon the application of a dielectric current, in oxidation and reduction reactions of said electroactive organic compounds which are necessary for obtaining a colour contrast.

Description

technical field [0001] The present invention relates to electroactive materials for electrically controllable devices said to have variable optical and / or energy properties, which electroactive materials are also called semi-electroactive materials containing Reduction-active organic compounds, to processes and kits for the preparation of such materials, to electrically controllable devices comprising self-supporting layers of polymers with complementary redox activity, i.e. respectively positive or negative redox activity , and relates to glazing using such semi-electroactive materials. Background technique [0002] In the following, the electroactive material (or system) of the present invention is sometimes also referred to as a semi-electroactive material (or system), and the fact that the material is capable of forming an electrochemical half-cell is discussed incidentally. [0003] Such a device can generally be defined as a stack comprising the following layers: [...

Claims

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Application Information

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IPC IPC(8): G02F1/15C09K9/02G02F1/1503
CPCG02F1/1521B32B17/10036C09K9/02G02F1/15G02F2001/1502G02F1/1503Y10T428/24942Y10T156/1039Y10T428/31504G02F1/15165
Inventor F·皮鲁G·博科布扎P·珀蒂J-C·吉龙
Owner SAINT-GOBAIN GLASS FRANCE
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