Patent
US 10,663,833ELECTROCHROMIC DEVICE WITH GRAPHENE/FERROELECTRIC ELECTRODE
OZYILMAZ, Barbaros, KULKARNI, Eeshan Sandeep
14 May 2015·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,663,833Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic diagram of the structure of an electrochromic device, in accordance with the prior art. [0012]
FIG. 2 is a schematic diagram of an electrochromic device utilizing two graphene- ferroelectric electrodes, in accordance with a version of the invention. …
FIG. 3 is a schematic diagram of an electrochromic device utilizing one graphene- ferroelectric electrode and one graphene electrode, in accordance with a …
FIG. 4 is a schematic diagram of an electrochromic device utilizing graphene- ferroelectric sandwiched electrodes, in accordance with a version of the …
FIG. 5 is a schematic diagram of a substrate of an electrochromic device, incorporating an air gap or thermal insulator, in accordance with a version of the …
FIG. 6 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the OFF mode, with no orientation of …
FIG. 7 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the ON mode, with ferroelectric …
FIG. 8 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, once the external field is removed, with …
FIGS. 9A and 9B are photographs showing the-operation (OFF in
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An electrochromic device, the device comprising: at least one electrode including graphene and at least one ferroelectric material; and an electrochromic active layer, the electrochromic active layer configured to vary between an opaque and transparent state via the application of an electric field between two electrodes comprising the at least one electrode that includes graphene and at least one ferroelectric material; the at least one ferroelectric material of the at least one electrode being configured to apply a nonvolatile electric field across the electrochromic active layer such that the electrochromic device is configured to remain transparent with no external power source. Currently amended
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, each of the two electrodes including graphene and at least one ferroelectric material. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises at least one ferroelectric material layer located between a first layer of graphene and a second layer of graphene. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, a first electrode of the two electrodes including graphene and at least one ferroelectric material, and a second electrode of the two electrodes comprising only graphene. Original
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a liquid crystal material. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a suspending polymer material. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises a ferroelectric polymer. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises lead zirconate titanate. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic device is configured to permit recovery of energy stored in alignment of ferroelectric dipoles within the ferroelectric material. Previously presented
The electrochromic device of Claim 1, wherein the graphene of the at least one electrode comprises a material selected from the group consisting of: monolayer graphene; bi-layer graphene; multilayer graphene; an interconnected graphene-based mesh network; and a graphene composite. Previously presented
The electrochromic device of Claim 1, further comprising a substrate. Previously presented
The electrochromic device of Claim 1, wherein the device is flexible. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises at least one dye molecule. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
electrochromic device
Materials described outside the worked examples.
graphene
ferroelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–3 seconds | — |
Voltage |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,663,833Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic diagram of the structure of an electrochromic device, in accordance with the prior art. [0012]
FIG. 2 is a schematic diagram of an electrochromic device utilizing two graphene- ferroelectric electrodes, in accordance with a version of the invention. …
FIG. 3 is a schematic diagram of an electrochromic device utilizing one graphene- ferroelectric electrode and one graphene electrode, in accordance with a …
FIG. 4 is a schematic diagram of an electrochromic device utilizing graphene- ferroelectric sandwiched electrodes, in accordance with a version of the …
FIG. 5 is a schematic diagram of a substrate of an electrochromic device, incorporating an air gap or thermal insulator, in accordance with a version of the …
FIG. 6 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the OFF mode, with no orientation of …
FIG. 7 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the ON mode, with ferroelectric …
FIG. 8 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, once the external field is removed, with …
FIGS. 9A and 9B are photographs showing the-operation (OFF in
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An electrochromic device, the device comprising: at least one electrode including graphene and at least one ferroelectric material; and an electrochromic active layer, the electrochromic active layer configured to vary between an opaque and transparent state via the application of an electric field between two electrodes comprising the at least one electrode that includes graphene and at least one ferroelectric material; the at least one ferroelectric material of the at least one electrode being configured to apply a nonvolatile electric field across the electrochromic active layer such that the electrochromic device is configured to remain transparent with no external power source. Currently amended
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, each of the two electrodes including graphene and at least one ferroelectric material. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises at least one ferroelectric material layer located between a first layer of graphene and a second layer of graphene. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, a first electrode of the two electrodes including graphene and at least one ferroelectric material, and a second electrode of the two electrodes comprising only graphene. Original
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a liquid crystal material. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a suspending polymer material. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises a ferroelectric polymer. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises lead zirconate titanate. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic device is configured to permit recovery of energy stored in alignment of ferroelectric dipoles within the ferroelectric material. Previously presented
The electrochromic device of Claim 1, wherein the graphene of the at least one electrode comprises a material selected from the group consisting of: monolayer graphene; bi-layer graphene; multilayer graphene; an interconnected graphene-based mesh network; and a graphene composite. Previously presented
The electrochromic device of Claim 1, further comprising a substrate. Previously presented
The electrochromic device of Claim 1, wherein the device is flexible. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises at least one dye molecule. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
electrochromic device
Materials described outside the worked examples.
graphene
ferroelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–3 seconds | — |
Voltage |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,663,833Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic diagram of the structure of an electrochromic device, in accordance with the prior art. [0012]
FIG. 2 is a schematic diagram of an electrochromic device utilizing two graphene- ferroelectric electrodes, in accordance with a version of the invention. …
FIG. 3 is a schematic diagram of an electrochromic device utilizing one graphene- ferroelectric electrode and one graphene electrode, in accordance with a …
FIG. 4 is a schematic diagram of an electrochromic device utilizing graphene- ferroelectric sandwiched electrodes, in accordance with a version of the …
FIG. 5 is a schematic diagram of a substrate of an electrochromic device, incorporating an air gap or thermal insulator, in accordance with a version of the …
FIG. 6 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the OFF mode, with no orientation of …
FIG. 7 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the ON mode, with ferroelectric …
FIG. 8 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, once the external field is removed, with …
FIGS. 9A and 9B are photographs showing the-operation (OFF in
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An electrochromic device, the device comprising: at least one electrode including graphene and at least one ferroelectric material; and an electrochromic active layer, the electrochromic active layer configured to vary between an opaque and transparent state via the application of an electric field between two electrodes comprising the at least one electrode that includes graphene and at least one ferroelectric material; the at least one ferroelectric material of the at least one electrode being configured to apply a nonvolatile electric field across the electrochromic active layer such that the electrochromic device is configured to remain transparent with no external power source. Currently amended
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, each of the two electrodes including graphene and at least one ferroelectric material. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises at least one ferroelectric material layer located between a first layer of graphene and a second layer of graphene. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, a first electrode of the two electrodes including graphene and at least one ferroelectric material, and a second electrode of the two electrodes comprising only graphene. Original
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a liquid crystal material. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a suspending polymer material. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises a ferroelectric polymer. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises lead zirconate titanate. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic device is configured to permit recovery of energy stored in alignment of ferroelectric dipoles within the ferroelectric material. Previously presented
The electrochromic device of Claim 1, wherein the graphene of the at least one electrode comprises a material selected from the group consisting of: monolayer graphene; bi-layer graphene; multilayer graphene; an interconnected graphene-based mesh network; and a graphene composite. Previously presented
The electrochromic device of Claim 1, further comprising a substrate. Previously presented
The electrochromic device of Claim 1, wherein the device is flexible. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises at least one dye molecule. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
electrochromic device
Materials described outside the worked examples.
graphene
ferroelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–3 seconds | — |
Voltage |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,663,833Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic diagram of the structure of an electrochromic device, in accordance with the prior art. [0012]
FIG. 2 is a schematic diagram of an electrochromic device utilizing two graphene- ferroelectric electrodes, in accordance with a version of the invention. …
FIG. 3 is a schematic diagram of an electrochromic device utilizing one graphene- ferroelectric electrode and one graphene electrode, in accordance with a …
FIG. 4 is a schematic diagram of an electrochromic device utilizing graphene- ferroelectric sandwiched electrodes, in accordance with a version of the …
FIG. 5 is a schematic diagram of a substrate of an electrochromic device, incorporating an air gap or thermal insulator, in accordance with a version of the …
FIG. 6 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the OFF mode, with no orientation of …
FIG. 7 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, in the ON mode, with ferroelectric …
FIG. 8 is a schematic diagram of operation of an electrochromic device in accordance with a version of the invention, once the external field is removed, with …
FIGS. 9A and 9B are photographs showing the-operation (OFF in
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An electrochromic device, the device comprising: at least one electrode including graphene and at least one ferroelectric material; and an electrochromic active layer, the electrochromic active layer configured to vary between an opaque and transparent state via the application of an electric field between two electrodes comprising the at least one electrode that includes graphene and at least one ferroelectric material; the at least one ferroelectric material of the at least one electrode being configured to apply a nonvolatile electric field across the electrochromic active layer such that the electrochromic device is configured to remain transparent with no external power source. Currently amended
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, each of the two electrodes including graphene and at least one ferroelectric material. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises at least one ferroelectric material layer located between a first layer of graphene and a second layer of graphene. Original
The electrochromic device of Claim 1, wherein the at least one electrode comprises two electrodes, a first electrode of the two electrodes including graphene and at least one ferroelectric material, and a second electrode of the two electrodes comprising only graphene. Original
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a liquid crystal material. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises a suspending polymer material. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises a ferroelectric polymer. Previously presented
The electrochromic device of Claim 1, wherein the ferroelectric material comprises lead zirconate titanate. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic device is configured to permit recovery of energy stored in alignment of ferroelectric dipoles within the ferroelectric material. Previously presented
The electrochromic device of Claim 1, wherein the graphene of the at least one electrode comprises a material selected from the group consisting of: monolayer graphene; bi-layer graphene; multilayer graphene; an interconnected graphene-based mesh network; and a graphene composite. Previously presented
The electrochromic device of Claim 1, further comprising a substrate. Previously presented
The electrochromic device of Claim 1, wherein the device is flexible. Previously presented
The electrochromic device of Claim 1, wherein the electrochromic active layer comprises at least one dye molecule. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
electrochromic device
Materials described outside the worked examples.
graphene
ferroelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 10 is a graph of transparency as a function of applied voltage in electrochromic devices in an experiment, in accordance with a version of the invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–3 seconds | — |
Voltage |
Related documents with shared materials, methods, properties, or citations.
liquid crystal material
polymer (for liquid crystal dispersion)
suspending polymer material
polyvinylidene fluoride (PVDF)
polyvinylidene fluoride co-trifluoroethylene (PVDF-TrFE)
lead zirconate titanate (PZT)
dye molecule
4-Cyano-4'-pentylbiphenyl (5CB)
poly(methyl methacrylate) (PMMA)
poly(vinyl alcohol) (PVA)
poly(vinyl butyral) (PVB)
dihydrocinchonidine bisulfite polyiodide particles
oligomeric ester of methacrylic acid
polyethylene terephthalate (PET)
durability of the device through increased resistance to external impurities. [0024] In accordance with a version of the invention, the incorporation of ferroelectric materials allows the device to exhibit nonvolatile usage; that is, devices can remain transpa
| — |
liquid crystal material
polymer (for liquid crystal dispersion)
suspending polymer material
polyvinylidene fluoride (PVDF)
polyvinylidene fluoride co-trifluoroethylene (PVDF-TrFE)
lead zirconate titanate (PZT)
dye molecule
4-Cyano-4'-pentylbiphenyl (5CB)
poly(methyl methacrylate) (PMMA)
poly(vinyl alcohol) (PVA)
poly(vinyl butyral) (PVB)
dihydrocinchonidine bisulfite polyiodide particles
oligomeric ester of methacrylic acid
polyethylene terephthalate (PET)
durability of the device through increased resistance to external impurities. [0024] In accordance with a version of the invention, the incorporation of ferroelectric materials allows the device to exhibit nonvolatile usage; that is, devices can remain transpa
| — |
liquid crystal material
polymer (for liquid crystal dispersion)
suspending polymer material
polyvinylidene fluoride (PVDF)
polyvinylidene fluoride co-trifluoroethylene (PVDF-TrFE)
lead zirconate titanate (PZT)
dye molecule
4-Cyano-4'-pentylbiphenyl (5CB)
poly(methyl methacrylate) (PMMA)
poly(vinyl alcohol) (PVA)
poly(vinyl butyral) (PVB)
dihydrocinchonidine bisulfite polyiodide particles
oligomeric ester of methacrylic acid
polyethylene terephthalate (PET)
durability of the device through increased resistance to external impurities. [0024] In accordance with a version of the invention, the incorporation of ferroelectric materials allows the device to exhibit nonvolatile usage; that is, devices can remain transpa
| — |
liquid crystal material
polymer (for liquid crystal dispersion)
suspending polymer material
polyvinylidene fluoride (PVDF)
polyvinylidene fluoride co-trifluoroethylene (PVDF-TrFE)
lead zirconate titanate (PZT)
dye molecule
4-Cyano-4'-pentylbiphenyl (5CB)
poly(methyl methacrylate) (PMMA)
poly(vinyl alcohol) (PVA)
poly(vinyl butyral) (PVB)
dihydrocinchonidine bisulfite polyiodide particles
oligomeric ester of methacrylic acid
polyethylene terephthalate (PET)
durability of the device through increased resistance to external impurities. [0024] In accordance with a version of the invention, the incorporation of ferroelectric materials allows the device to exhibit nonvolatile usage; that is, devices can remain transpa
| — |