Patent
US 10,679,816THERMIONIC CATHODE WITH A GRAPHENE SEALING LAYER AND METHOD OF MAKING THE SAME
Nathan Moody
US
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Patent
Atlas literature
Patent
US 10,679,816Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A is a schematic cross sectional view of a thermionic cathode according to an embodiment of the present disclosure. [0022]
FIG. 2 is a schematic illustration of a graphene layer intercalated with a dopant element. [0024]
FIG. 3 is a flow chart illustrating a process of depositing a graphene layer on a substrate. [0025]
FIGS. 4A to 4D are schematic illustrations of a process of depositing a graphene layer on a substrate.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A thermionic cathode, comprising: a cathode body having an outer surface, and a sealing layer comprising one or more graphene sheets on the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer further comprises a dopant doped in the one or more graphene sheets. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer completely covers the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer comprises 1 to 20 graphene sheets. Withdrawn
A method for manufacturing a thermionic cathode, the method comprising: providing a cathode body, the cathode body having an outer surface, and depositing a sealing layer comprising 1 to 20 graphene sheets on the outer surface of the cathode body, wherein the graphene sheets conform to the outer surface of the cathode body. Currently amended
The method of claim 12, wherein the depositing of the sealing layer comprises depositing the sealing layer directly onto the outer surface of the cathode body utilizing chemical-vapor-deposition. Original
The method of claim 12, wherein the depositing of the sealing layer com prises: co-depositing a dopant and carbon on the outer surface of the cathode body to form a doped graphene sheet. Original
A method for manufacturing a thermionic cathode, the method comprising: depositing a sealing layer comprising 1 to 20 graphene sheets on an outer surface of a cathode body, wherein the depositing of the sealing layer comprises: depositing a graphene layer on a carrier substrate to form a graphene layer- carrier laminate, applying a polymer film on the graphene layer to form a polymer film-graphene layer-carrier laminate, removing the carrier substrate from the polymer film-graphene layer-carrier laminate to form a polymer film-graphene layer laminate, attaching the polymer film-graphene layer laminate on the outer surface of the cathode body, and removing the polymer film from the polymer film-graphene layer laminate, and wherein the thermionic cathode comprises the sealin g layer and the cathode body. Currently amended
The method of claim 17, further comprising removing a native oxide layer from the carrier substrate prior to the depositing of the graphene layer. Original
1 9. The method of claim 17, wherein the carrier substrate is a Cu foil or a Ni foil. Previously presented
The method of claim 17, wherein the depositing of the graphene layer comprises a chemical-vapor-deposition process. Original
Layer stacks claimed or described, ordered top of device to substrate.
thermionic cathode
Materials described outside the worked examples.
graphene sheet
C
cathode body
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–6 hours | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,679,816Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A is a schematic cross sectional view of a thermionic cathode according to an embodiment of the present disclosure. [0022]
FIG. 2 is a schematic illustration of a graphene layer intercalated with a dopant element. [0024]
FIG. 3 is a flow chart illustrating a process of depositing a graphene layer on a substrate. [0025]
FIGS. 4A to 4D are schematic illustrations of a process of depositing a graphene layer on a substrate.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A thermionic cathode, comprising: a cathode body having an outer surface, and a sealing layer comprising one or more graphene sheets on the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer further comprises a dopant doped in the one or more graphene sheets. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer completely covers the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer comprises 1 to 20 graphene sheets. Withdrawn
A method for manufacturing a thermionic cathode, the method comprising: providing a cathode body, the cathode body having an outer surface, and depositing a sealing layer comprising 1 to 20 graphene sheets on the outer surface of the cathode body, wherein the graphene sheets conform to the outer surface of the cathode body. Currently amended
The method of claim 12, wherein the depositing of the sealing layer comprises depositing the sealing layer directly onto the outer surface of the cathode body utilizing chemical-vapor-deposition. Original
The method of claim 12, wherein the depositing of the sealing layer com prises: co-depositing a dopant and carbon on the outer surface of the cathode body to form a doped graphene sheet. Original
A method for manufacturing a thermionic cathode, the method comprising: depositing a sealing layer comprising 1 to 20 graphene sheets on an outer surface of a cathode body, wherein the depositing of the sealing layer comprises: depositing a graphene layer on a carrier substrate to form a graphene layer- carrier laminate, applying a polymer film on the graphene layer to form a polymer film-graphene layer-carrier laminate, removing the carrier substrate from the polymer film-graphene layer-carrier laminate to form a polymer film-graphene layer laminate, attaching the polymer film-graphene layer laminate on the outer surface of the cathode body, and removing the polymer film from the polymer film-graphene layer laminate, and wherein the thermionic cathode comprises the sealin g layer and the cathode body. Currently amended
The method of claim 17, further comprising removing a native oxide layer from the carrier substrate prior to the depositing of the graphene layer. Original
1 9. The method of claim 17, wherein the carrier substrate is a Cu foil or a Ni foil. Previously presented
The method of claim 17, wherein the depositing of the graphene layer comprises a chemical-vapor-deposition process. Original
Layer stacks claimed or described, ordered top of device to substrate.
thermionic cathode
Materials described outside the worked examples.
graphene sheet
C
cathode body
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–6 hours | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,679,816Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A is a schematic cross sectional view of a thermionic cathode according to an embodiment of the present disclosure. [0022]
FIG. 2 is a schematic illustration of a graphene layer intercalated with a dopant element. [0024]
FIG. 3 is a flow chart illustrating a process of depositing a graphene layer on a substrate. [0025]
FIGS. 4A to 4D are schematic illustrations of a process of depositing a graphene layer on a substrate.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A thermionic cathode, comprising: a cathode body having an outer surface, and a sealing layer comprising one or more graphene sheets on the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer further comprises a dopant doped in the one or more graphene sheets. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer completely covers the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer comprises 1 to 20 graphene sheets. Withdrawn
A method for manufacturing a thermionic cathode, the method comprising: providing a cathode body, the cathode body having an outer surface, and depositing a sealing layer comprising 1 to 20 graphene sheets on the outer surface of the cathode body, wherein the graphene sheets conform to the outer surface of the cathode body. Currently amended
The method of claim 12, wherein the depositing of the sealing layer comprises depositing the sealing layer directly onto the outer surface of the cathode body utilizing chemical-vapor-deposition. Original
The method of claim 12, wherein the depositing of the sealing layer com prises: co-depositing a dopant and carbon on the outer surface of the cathode body to form a doped graphene sheet. Original
A method for manufacturing a thermionic cathode, the method comprising: depositing a sealing layer comprising 1 to 20 graphene sheets on an outer surface of a cathode body, wherein the depositing of the sealing layer comprises: depositing a graphene layer on a carrier substrate to form a graphene layer- carrier laminate, applying a polymer film on the graphene layer to form a polymer film-graphene layer-carrier laminate, removing the carrier substrate from the polymer film-graphene layer-carrier laminate to form a polymer film-graphene layer laminate, attaching the polymer film-graphene layer laminate on the outer surface of the cathode body, and removing the polymer film from the polymer film-graphene layer laminate, and wherein the thermionic cathode comprises the sealin g layer and the cathode body. Currently amended
The method of claim 17, further comprising removing a native oxide layer from the carrier substrate prior to the depositing of the graphene layer. Original
1 9. The method of claim 17, wherein the carrier substrate is a Cu foil or a Ni foil. Previously presented
The method of claim 17, wherein the depositing of the graphene layer comprises a chemical-vapor-deposition process. Original
Layer stacks claimed or described, ordered top of device to substrate.
thermionic cathode
Materials described outside the worked examples.
graphene sheet
C
cathode body
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–6 hours | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,679,816Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A is a schematic cross sectional view of a thermionic cathode according to an embodiment of the present disclosure. [0022]
FIG. 2 is a schematic illustration of a graphene layer intercalated with a dopant element. [0024]
FIG. 3 is a flow chart illustrating a process of depositing a graphene layer on a substrate. [0025]
FIGS. 4A to 4D are schematic illustrations of a process of depositing a graphene layer on a substrate.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A thermionic cathode, comprising: a cathode body having an outer surface, and a sealing layer comprising one or more graphene sheets on the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer further comprises a dopant doped in the one or more graphene sheets. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer completely covers the outer surface of the cathode body. Withdrawn
The thermionic cathode of claim 1, wherein the sealing layer comprises 1 to 20 graphene sheets. Withdrawn
A method for manufacturing a thermionic cathode, the method comprising: providing a cathode body, the cathode body having an outer surface, and depositing a sealing layer comprising 1 to 20 graphene sheets on the outer surface of the cathode body, wherein the graphene sheets conform to the outer surface of the cathode body. Currently amended
The method of claim 12, wherein the depositing of the sealing layer comprises depositing the sealing layer directly onto the outer surface of the cathode body utilizing chemical-vapor-deposition. Original
The method of claim 12, wherein the depositing of the sealing layer com prises: co-depositing a dopant and carbon on the outer surface of the cathode body to form a doped graphene sheet. Original
A method for manufacturing a thermionic cathode, the method comprising: depositing a sealing layer comprising 1 to 20 graphene sheets on an outer surface of a cathode body, wherein the depositing of the sealing layer comprises: depositing a graphene layer on a carrier substrate to form a graphene layer- carrier laminate, applying a polymer film on the graphene layer to form a polymer film-graphene layer-carrier laminate, removing the carrier substrate from the polymer film-graphene layer-carrier laminate to form a polymer film-graphene layer laminate, attaching the polymer film-graphene layer laminate on the outer surface of the cathode body, and removing the polymer film from the polymer film-graphene layer laminate, and wherein the thermionic cathode comprises the sealin g layer and the cathode body. Currently amended
The method of claim 17, further comprising removing a native oxide layer from the carrier substrate prior to the depositing of the graphene layer. Original
1 9. The method of claim 17, wherein the carrier substrate is a Cu foil or a Ni foil. Previously presented
The method of claim 17, wherein the depositing of the graphene layer comprises a chemical-vapor-deposition process. Original
Layer stacks claimed or described, ordered top of device to substrate.
thermionic cathode
Materials described outside the worked examples.
graphene sheet
C
cathode body
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 2–6 hours | — |
Related documents with shared materials, methods, properties, or citations.
dopant (metal element)
cathode material
tungsten
W
nickel
Ni
metal oxide additive
barium oxide
BaO
strontium oxide
SrO
calcium oxide
CaO
aluminum oxide
Al₂O₃
thorium oxide
ThO
barium
Ba
carrier substrate
copper foil
Cu
polymer film
dopant (metal element)
cathode material
tungsten
W
nickel
Ni
metal oxide additive
barium oxide
BaO
strontium oxide
SrO
calcium oxide
CaO
aluminum oxide
Al₂O₃
thorium oxide
ThO
barium
Ba
carrier substrate
copper foil
Cu
polymer film
dopant (metal element)
cathode material
tungsten
W
nickel
Ni
metal oxide additive
barium oxide
BaO
strontium oxide
SrO
calcium oxide
CaO
aluminum oxide
Al₂O₃
thorium oxide
ThO
barium
Ba
carrier substrate
copper foil
Cu
polymer film
dopant (metal element)
cathode material
tungsten
W
nickel
Ni
metal oxide additive
barium oxide
BaO
strontium oxide
SrO
calcium oxide
CaO
aluminum oxide
Al₂O₃
thorium oxide
ThO
barium
Ba
carrier substrate
copper foil
Cu
polymer film