ELECTROCHEMICAL DEVICE HAVING ELECTRICALLY CONTROLLABLE OPTICAL AND/OR ENERGY TRANSMISSION PROPERTIES
First Claim
1. An electrochemical device having electrically controllable optical and/or energy properties, comprising:
- a first electrode coating comprising an electroconductive layer;
a second electrode coating comprising an electroconductive layer; and
an electrochemically active medium between the first electrode coating and the second electrode coating, wherein the electrochemically active medium is capable of switching reversibly between a first state and a second state of different optical transmission by supplying electrical power to the first electrode coating and to the second electrode coating,wherein the material of at least one electroconductive layer of at least one of the first and second electrode coatings comprises a metal oxide, said material having a light transmission factor D65 equal to or greater than 60%, wherein said material has a concentration of free charge carriers such that the material has an absorption spectrum satisfying (λ
−
Δ
λ
/2)≧
1.8 μ
m, wherein λ
is the plasma wavelength of the material and Δ
λ
is the full width at half maximum of the absorption spectrum at the plasma wavelength, the electrochemically active medium being active at this plasma wavelength for a solar factor contrast g.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to an electrochemical device (1) having electrically controllable optical and/or energy properties, comprising a first electrode coating (4), a second electrode coating (12) and an electrochemically active medium (6, 10) capable of switching reversibly between a first state and a second state of different optical transmission by supplying electrical power to the first electrode coating (4) and to the second electrode coating (12),
the material of the electrode coatings being based on a metal oxide having a light transmission factor D65 equal to or greater than 60%, preferably equal to or greater than 80%, and having a concentration of free charge carriers such that the material has an absorption spectrum satisfying (λ−Δλ/2)≧1.8 μm, where λ is the plasma wavelength of the material and Δλ is the full width at half maximum of the absorption spectrum at the plasma wavelength.
-
Citations
20 Claims
-
1. An electrochemical device having electrically controllable optical and/or energy properties, comprising:
-
a first electrode coating comprising an electroconductive layer; a second electrode coating comprising an electroconductive layer; and an electrochemically active medium between the first electrode coating and the second electrode coating, wherein the electrochemically active medium is capable of switching reversibly between a first state and a second state of different optical transmission by supplying electrical power to the first electrode coating and to the second electrode coating, wherein the material of at least one electroconductive layer of at least one of the first and second electrode coatings comprises a metal oxide, said material having a light transmission factor D65 equal to or greater than 60%, wherein said material has a concentration of free charge carriers such that the material has an absorption spectrum satisfying (λ
−
Δ
λ
/2)≧
1.8 μ
m, wherein λ
is the plasma wavelength of the material and Δ
λ
is the full width at half maximum of the absorption spectrum at the plasma wavelength, the electrochemically active medium being active at this plasma wavelength for a solar factor contrast g.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
-
-
17. A process for manufacturing an electrochemical device having electrically controllable optical and/or energy properties, the process comprising:
-
depositing a first electroconductive layer on a substrate to form a first electrode coating; depositing a second electroconductive layer, on the substrate or on a counter substrate, to form a second electrode coating; and depositing an electrochemically active medium intended to be located between the first electrode coating and the second electrode coating, wherein the electrochemically active medium is capable of switching reversibly between a first state and a second state of different optical transmission by supplying electrical power to the first electrode coating and to the second electrode coating, wherein the material of at least one electroconductive layer of at least one of the first and second electrode coatings comprises a metal oxide, and wherein said material has a light transmission factor D65 equal to or greater than 60%, and has a concentration of free charge carriers such that the material has an absorption spectrum satisfying (λ
−
Δ
λ
/2)≧
1.8 μ
m, wherein λ
is the plasma wavelength of the material and Δ
λ
is the full width at half maximum of the absorption spectrum at the plasma wavelength.
-
Specification