Patent
US 9,797,779PYROELECTRIC DETECTOR USING GRAPHENE ELECTRODE
OZYILMAZ, Barbaros, KULKARNI, Eeshan Sandeep
National University of Singapore·11 June 2015·US
Copyright © 2026 Matter42. All rights reserved.
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Atlas literature
Patent
US 9,797,779Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B is a cross-sectional schematic diagram. [0019]
FIGS. 2A and 2B are schematic diagrams of a device structure of a pyroelectric sensor utilizing an interconnected graphene network and pyroelectric components, …
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
FIGS. 4A and 4B are schematic diagrams illustrating operation of a generic graphene/pyroelectric sensor, in accordance with a version of the invention, in which
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 6 is a schematic diagram of an array of pyroelectric sensors assembled into a pixelated sensing chip, in accordance with a version of the invention. [0024 …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
FIG. 10). First, dark current measurements were conducted at each of the 9 pixels to establish the baseline signal. The array was then selectively exposed to …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A pyroelectric detector configured to measure intensity of at least one wavelength of electromagnetic radiation impinging on the pyroelectric detector, the detector comprising: at least one pyroelectric active layer configured to undergo a reorientation of dipoles in response to the at least one wavelength of the electromagnetic radiation; and at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation, the at least one pyroelectric active layer configured to directly absorb the at least one wavelength of the electromagnetic radiation, the at least one wavelength having been transmitted through the at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, further comprising: at least one back substrate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises at least one of: single layer graphene, bilayer graphene, multilayer graphene, reduced graphene oxide, graphene platelets, and an interconnected graphene network. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises at least one o f: (i) polyvinylidene fluoride and (ii) a copolymer of polyvinylidene fluoride. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises lead zirconium titanate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises a graphene foam, wherein the at least one pyroelectric active layer comprises a surrounding coating on at least a portion of the graphene foam, and wherein the detector comprises an outer conducting layer surrounding the at least a portion of the at least one pyroelectric active layer. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode is configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, wherein the detector is mechanically flexible. Original
The pyroelectric detector of Claim 1, wherein the detector comprises only one electrode, the electrode being only one graphene electrode, the only one graphene electrode being configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation, the pyroelectric detector further comprising: a voltage source configured to pass a current across a surface of the at least one graphene electrode; a voltage probe configured to measure a voltage across the surface of the at least one graphene electrode, the voltage across the surface being proportional to the changed sheet resistance of the at least one graphene electrode. Previously presented
The pyroelectric detector of Claim 1, wherein absorption characteristics of the at least one pyroelectric active layer define a spectral response of the pyroelectric detector. Previously presented
The pyroelectric detector of Claim 1, wherein the at least one wavelength comprises an infrared wavelength. Previously presented
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
pyroelectric detector with graphene electrode
pyroelectric detector with graphene foam electrode (3D configuration)
Materials described outside the worked examples.
graphene electrode
pyroelectric active layer
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,797,779Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B is a cross-sectional schematic diagram. [0019]
FIGS. 2A and 2B are schematic diagrams of a device structure of a pyroelectric sensor utilizing an interconnected graphene network and pyroelectric components, …
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
FIGS. 4A and 4B are schematic diagrams illustrating operation of a generic graphene/pyroelectric sensor, in accordance with a version of the invention, in which
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 6 is a schematic diagram of an array of pyroelectric sensors assembled into a pixelated sensing chip, in accordance with a version of the invention. [0024 …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
FIG. 10). First, dark current measurements were conducted at each of the 9 pixels to establish the baseline signal. The array was then selectively exposed to …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A pyroelectric detector configured to measure intensity of at least one wavelength of electromagnetic radiation impinging on the pyroelectric detector, the detector comprising: at least one pyroelectric active layer configured to undergo a reorientation of dipoles in response to the at least one wavelength of the electromagnetic radiation; and at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation, the at least one pyroelectric active layer configured to directly absorb the at least one wavelength of the electromagnetic radiation, the at least one wavelength having been transmitted through the at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, further comprising: at least one back substrate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises at least one of: single layer graphene, bilayer graphene, multilayer graphene, reduced graphene oxide, graphene platelets, and an interconnected graphene network. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises at least one o f: (i) polyvinylidene fluoride and (ii) a copolymer of polyvinylidene fluoride. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises lead zirconium titanate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises a graphene foam, wherein the at least one pyroelectric active layer comprises a surrounding coating on at least a portion of the graphene foam, and wherein the detector comprises an outer conducting layer surrounding the at least a portion of the at least one pyroelectric active layer. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode is configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, wherein the detector is mechanically flexible. Original
The pyroelectric detector of Claim 1, wherein the detector comprises only one electrode, the electrode being only one graphene electrode, the only one graphene electrode being configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation, the pyroelectric detector further comprising: a voltage source configured to pass a current across a surface of the at least one graphene electrode; a voltage probe configured to measure a voltage across the surface of the at least one graphene electrode, the voltage across the surface being proportional to the changed sheet resistance of the at least one graphene electrode. Previously presented
The pyroelectric detector of Claim 1, wherein absorption characteristics of the at least one pyroelectric active layer define a spectral response of the pyroelectric detector. Previously presented
The pyroelectric detector of Claim 1, wherein the at least one wavelength comprises an infrared wavelength. Previously presented
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
pyroelectric detector with graphene electrode
pyroelectric detector with graphene foam electrode (3D configuration)
Materials described outside the worked examples.
graphene electrode
pyroelectric active layer
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,797,779Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B is a cross-sectional schematic diagram. [0019]
FIGS. 2A and 2B are schematic diagrams of a device structure of a pyroelectric sensor utilizing an interconnected graphene network and pyroelectric components, …
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
FIGS. 4A and 4B are schematic diagrams illustrating operation of a generic graphene/pyroelectric sensor, in accordance with a version of the invention, in which
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 6 is a schematic diagram of an array of pyroelectric sensors assembled into a pixelated sensing chip, in accordance with a version of the invention. [0024 …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
FIG. 10). First, dark current measurements were conducted at each of the 9 pixels to establish the baseline signal. The array was then selectively exposed to …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A pyroelectric detector configured to measure intensity of at least one wavelength of electromagnetic radiation impinging on the pyroelectric detector, the detector comprising: at least one pyroelectric active layer configured to undergo a reorientation of dipoles in response to the at least one wavelength of the electromagnetic radiation; and at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation, the at least one pyroelectric active layer configured to directly absorb the at least one wavelength of the electromagnetic radiation, the at least one wavelength having been transmitted through the at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, further comprising: at least one back substrate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises at least one of: single layer graphene, bilayer graphene, multilayer graphene, reduced graphene oxide, graphene platelets, and an interconnected graphene network. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises at least one o f: (i) polyvinylidene fluoride and (ii) a copolymer of polyvinylidene fluoride. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises lead zirconium titanate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises a graphene foam, wherein the at least one pyroelectric active layer comprises a surrounding coating on at least a portion of the graphene foam, and wherein the detector comprises an outer conducting layer surrounding the at least a portion of the at least one pyroelectric active layer. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode is configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, wherein the detector is mechanically flexible. Original
The pyroelectric detector of Claim 1, wherein the detector comprises only one electrode, the electrode being only one graphene electrode, the only one graphene electrode being configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation, the pyroelectric detector further comprising: a voltage source configured to pass a current across a surface of the at least one graphene electrode; a voltage probe configured to measure a voltage across the surface of the at least one graphene electrode, the voltage across the surface being proportional to the changed sheet resistance of the at least one graphene electrode. Previously presented
The pyroelectric detector of Claim 1, wherein absorption characteristics of the at least one pyroelectric active layer define a spectral response of the pyroelectric detector. Previously presented
The pyroelectric detector of Claim 1, wherein the at least one wavelength comprises an infrared wavelength. Previously presented
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
pyroelectric detector with graphene electrode
pyroelectric detector with graphene foam electrode (3D configuration)
Materials described outside the worked examples.
graphene electrode
pyroelectric active layer
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,797,779Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B is a cross-sectional schematic diagram. [0019]
FIGS. 2A and 2B are schematic diagrams of a device structure of a pyroelectric sensor utilizing an interconnected graphene network and pyroelectric components, …
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
FIGS. 4A and 4B are schematic diagrams illustrating operation of a generic graphene/pyroelectric sensor, in accordance with a version of the invention, in which
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 6 is a schematic diagram of an array of pyroelectric sensors assembled into a pixelated sensing chip, in accordance with a version of the invention. [0024 …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
FIG. 10). First, dark current measurements were conducted at each of the 9 pixels to establish the baseline signal. The array was then selectively exposed to …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A pyroelectric detector configured to measure intensity of at least one wavelength of electromagnetic radiation impinging on the pyroelectric detector, the detector comprising: at least one pyroelectric active layer configured to undergo a reorientation of dipoles in response to the at least one wavelength of the electromagnetic radiation; and at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation, the at least one pyroelectric active layer configured to directly absorb the at least one wavelength of the electromagnetic radiation, the at least one wavelength having been transmitted through the at least one graphene electrode transparent to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, further comprising: at least one back substrate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises at least one of: single layer graphene, bilayer graphene, multilayer graphene, reduced graphene oxide, graphene platelets, and an interconnected graphene network. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises at least one o f: (i) polyvinylidene fluoride and (ii) a copolymer of polyvinylidene fluoride. Original
The pyroelectric detector of Claim 1, wherein the at least one pyroelectric layer comprises lead zirconium titanate. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode comprises a graphene foam, wherein the at least one pyroelectric active layer comprises a surrounding coating on at least a portion of the graphene foam, and wherein the detector comprises an outer conducting layer surrounding the at least a portion of the at least one pyroelectric active layer. Original
The pyroelectric detector of Claim 1, wherein the at least one graphene electrode is configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation. Previously presented
The pyroelectric detector of Claim 1, wherein the detector is mechanically flexible. Original
The pyroelectric detector of Claim 1, wherein the detector comprises only one electrode, the electrode being only one graphene electrode, the only one graphene electrode being configured to undergo a change in sheet resistance in response to the at least one wavelength of the electromagnetic radiation, the pyroelectric detector further comprising: a voltage source configured to pass a current across a surface of the at least one graphene electrode; a voltage probe configured to measure a voltage across the surface of the at least one graphene electrode, the voltage across the surface being proportional to the changed sheet resistance of the at least one graphene electrode. Previously presented
The pyroelectric detector of Claim 1, wherein absorption characteristics of the at least one pyroelectric active layer define a spectral response of the pyroelectric detector. Previously presented
The pyroelectric detector of Claim 1, wherein the at least one wavelength comprises an infrared wavelength. Previously presented
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
pyroelectric detector with graphene electrode
pyroelectric detector with graphene foam electrode (3D configuration)
Materials described outside the worked examples.
graphene electrode
pyroelectric active layer
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 3A and 3B are schematic diagrams of a device structure of a pyroelectric sensor utilizing graphene and pyroelectric components, operating in sheet …
Related documents with shared materials, methods, properties, or citations.
single layer graphene
bilayer graphene
multilayer graphene
reduced graphene oxide
interconnected graphene network
graphene foam
polyvinylidene fluoride
PVDF
copolymer of polyvinylidene fluoride
lead zirconium titanate
PZT
graphene platelets
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
durability and performance of the device. [0031] In accordance with a version of the invention, pyroelectric materials may also be used that lower the sheet resistance of graphene. Such materials may be used in a method of measuring radiation, such as infrared
single layer graphene
bilayer graphene
multilayer graphene
reduced graphene oxide
interconnected graphene network
graphene foam
polyvinylidene fluoride
PVDF
copolymer of polyvinylidene fluoride
lead zirconium titanate
PZT
graphene platelets
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
durability and performance of the device. [0031] In accordance with a version of the invention, pyroelectric materials may also be used that lower the sheet resistance of graphene. Such materials may be used in a method of measuring radiation, such as infrared
single layer graphene
bilayer graphene
multilayer graphene
reduced graphene oxide
interconnected graphene network
graphene foam
polyvinylidene fluoride
PVDF
copolymer of polyvinylidene fluoride
lead zirconium titanate
PZT
graphene platelets
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
durability and performance of the device. [0031] In accordance with a version of the invention, pyroelectric materials may also be used that lower the sheet resistance of graphene. Such materials may be used in a method of measuring radiation, such as infrared
single layer graphene
bilayer graphene
multilayer graphene
reduced graphene oxide
interconnected graphene network
graphene foam
polyvinylidene fluoride
PVDF
copolymer of polyvinylidene fluoride
lead zirconium titanate
PZT
graphene platelets
FIGS. 5 A and 5 B are schematic diagrams illustrating operation of a graphene/pyroelectric sensor functioning in sheet resistance mode, in accordance with a …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 7A is a schematic showing GPIR device structure and orientation to incoming radiation, in an experiment in accordance with a version of the invention. …
FIG. 8A is a graph of pyroelectric signal as a function of chopping frequency for various blackbody temperatures, in an experiment in accordance with a version …
FIG. 9F shows chopper closed. Pyroelectric material cools. Negative current signal observed. [0027 1 FIGS. I O A to 1 O C are photographs of selectively shaded …
durability and performance of the device. [0031] In accordance with a version of the invention, pyroelectric materials may also be used that lower the sheet resistance of graphene. Such materials may be used in a method of measuring radiation, such as infrared