Patent
US 10,566,482Inorganic Coating-Protected Unitary Graphene Materials for Concentrated Photovoltaic Applications
Aruna Zhamu, Yi-jun Lin, Mingchao Wang, Wei Xiong et al.
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,566,482Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 (a) Example of a solar cell heat-dissipating system; (b) Example of a coated heat transfer member supporting multiple CPV cells; (c) A flow chart …
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG.4 (a) Thermal conductivity values of the GO-derived single unitary graphene layer (A), GO paper (m), and FG foil (*) plotted as a function of the final heat …
FIG.5 X-ray diffraction curves of (a) a GO film (dried GO gel), (b) GO film thermally reduced at 150*C (partially re-graphitized), (c) highly reduced and …
FIG.6 (a) Inter-graphene plane spacing measured by X-ray diffraction; (b) the oxygen content in the GO-derived unitary graphene layer; (c) correlation between …
FIG.7 (a) Thermal conductivity values of the GO-derived unitary graphene layer alone (s), unitary graphene matrix-expanded graphite reinforcement composite (+, …
FIG.8 (a) Tensile strength of unitary graphene matrix material from GO gel, paper of GO platelets (not from gel state), and flexible graphite foil over a range …
FIG. 69(a)- (c) indicate that there are four HTT ranges (100-500*C; 500-1,2500C; 1,250-2,000*C, and > 2,000*C) that lead to four respective oxygen content …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An inorganic coating-protected unitary graphene material heat sink article for concentrated photovoltaic cell heat dissipation, said article comprising at least a layer of unitary graphene material having two primary surfaces and an electrically non- conducting layer of inorganic coating deposited on at least one of said primary surfaces, wherein said unitary graphene material contains chemical bonds between some adjacent graphene molecules, said unitary graphene material having an inter- graphene spacing no greater than 0.40 nm, wherein said layer of unitary graphene material is a single crystal or a poly-crystal graphene structure containing no complete grain boundary therein that has a thickness greater than 100 nm,. -ef a porosity level less than 10%, an electric conductivity greater than 1,500 S/cm, and a thermal conductivity greater than 600 W/mK and said unitary graphene material has a preferred crystalline orientation, wherein graphene planes in said layer of unitary graphene material are closely packed and parallel to one another having an average mis- orientation angle of less than 10, wherein said layer of unitary graphene material is not an aggregate of discrete graphene platelets, not a catalytic CVD graphene film, and not a graphite. Currently amended
The article of claim 1, wherein the unitary graphene material further contains a discrete filler or reinforcement phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler or reinforcement phase contains a particle, filament, nano-tube, nano-wire, or nano-rod of a metal, ceramic, glass, polymer, carbon, graphite, or a combination thereof. Original
The article of claim 1, wherein the unitary graphene material further contains a discrete solid carbon, graphite, or graphene filler phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler phase is selected from a carbon or graphite fiber, carbon or graphite nano-fiber, carbon nano-tube, carbon nano-rod, meso-phase carbon particle, meso-carbon micro-bead, expanded graphite flake with a thickness greater than 100 nm, single-layer graphene sheet, multi-layer graphene platelet with a thickness less than 100 nm, exfoliated graphite or graphite worm, coke particle, needle coke, carbon black or acetylene black particle, activated carbon particle, or a combination thereof; wherein said carbon, graphite, or graphene filler phase occupies a weight fraction of 0.01% to 99% based on the total composite structure weight. Original
The article of claim 1, wherein said inorganic coating contains: (a) a ceramic material; (b) diamond; (c) a semiconductor element or compound selected from Si, Ge, Ga, gallium nitride, gallium phosphide, gallium arsenide, aluminum nitride, aluminum phosphide, aluminum arsenide, boron nitride, boron phosphide, boron arsenide; or a combination thereof. Original
The article of claim 1, wherein said inorganic coating layer has a thermal conductivity greater than 30 W/mK. Original
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 5%, an inter-graphene spacing less than 0.4 nm, and/or a thermal conductivity of at least 100 W/mK. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 1%, an inter-graphene spacing less than 0.345 nm, a thermal conductivity of at least 1,300 W/mK, and/or an electrical conductivity no less than 3,000 S/cm. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.01%, an inter-graphene spacing less than 0.337 nm, a thermal conductivity of at least 1,500 W/mK, and/or an electrical conductivity no less than 5,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.001%. an inter-graphene spacing less than 0.336 nm. a mosaic spread value no greater than 0.7, a thermal conductivity of at least 1,700 W/mK, and/or an electrical conductivity no less than 10,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an inter-graphene spacing less than 0.336 nm, a mosaic spread value no greater than 0.4, a thermal conductivity greater than 1,700 W/mK, and/or an electrical conductivity greater than 10,000 S/cm. Previously presented
The article of claim 1, wherein the unitary graphene material exhibits an inter- graphene spacing less than 0.337 nm and a mosaic spread value less than 1.0. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of g raphitization no less than 40% and/or a mosaic spread value less than 0.7. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of graphitization no less than 80% and/or a mosaic spread value no greater than 0.4. Original
The article of claim 1. wherein said chemically bonded graphene molecules are parallel to one another. Previously presented
The article of claim 1, wherein the chemically bonded graphene molecules contain a combination of sp 2 and sp 3 electronic configurations. Original
The article of claim 1. wherein said unitary graphene matrix composite has a physical density of at least 1.8 g/cm 3 or a porosity level lower than 5%. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 3,000 S/cm, a thermal conductivity greater than 600 W/mK, a physical density greater than 1.8 g/cm3, and/or a tensile stren g th greater than 40 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 5,000 S/cm, a thermal conductivity greater than 1,000 W/mK, a physical density greater than 1.9 g/cm3, and/or a tensile strength greater than 60 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 15,000 S/cm, a thermal conductivity greater than 1,500 W/mK, a physical density greater than 2.0 g/cm 3, and/or a tensile strength greater than 100 MPa. Original
The article of claim 1, wherein said inorganic coating is in thermal contact with a photovoltaic cell and receives heat therefrom. Original
A concentrated photovoltaic cell comprising a solar collecting and concentrating assembly, a photovoltaic cell that receives solar energy from said solar collecting and concentrating assembly and generates electricity and heat, and an article of claim 1 that receives heat from said photovoltaic cell. Original
Canceled
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Canceled
Layer stacks claimed or described, ordered top of device to substrate.
inorganic coating-protected unitary graphene heat sink article
concentrated photovoltaic cell assembly with graphene heat sink
Materials described outside the worked examples.
unitary graphene material
inorganic coating (electrically non-conducting)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-graphene spacing (claimed upper bound) | ≤ 0.4 nm | unitary graphene material |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,566,482Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 (a) Example of a solar cell heat-dissipating system; (b) Example of a coated heat transfer member supporting multiple CPV cells; (c) A flow chart …
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG.4 (a) Thermal conductivity values of the GO-derived single unitary graphene layer (A), GO paper (m), and FG foil (*) plotted as a function of the final heat …
FIG.5 X-ray diffraction curves of (a) a GO film (dried GO gel), (b) GO film thermally reduced at 150*C (partially re-graphitized), (c) highly reduced and …
FIG.6 (a) Inter-graphene plane spacing measured by X-ray diffraction; (b) the oxygen content in the GO-derived unitary graphene layer; (c) correlation between …
FIG.7 (a) Thermal conductivity values of the GO-derived unitary graphene layer alone (s), unitary graphene matrix-expanded graphite reinforcement composite (+, …
FIG.8 (a) Tensile strength of unitary graphene matrix material from GO gel, paper of GO platelets (not from gel state), and flexible graphite foil over a range …
FIG. 69(a)- (c) indicate that there are four HTT ranges (100-500*C; 500-1,2500C; 1,250-2,000*C, and > 2,000*C) that lead to four respective oxygen content …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An inorganic coating-protected unitary graphene material heat sink article for concentrated photovoltaic cell heat dissipation, said article comprising at least a layer of unitary graphene material having two primary surfaces and an electrically non- conducting layer of inorganic coating deposited on at least one of said primary surfaces, wherein said unitary graphene material contains chemical bonds between some adjacent graphene molecules, said unitary graphene material having an inter- graphene spacing no greater than 0.40 nm, wherein said layer of unitary graphene material is a single crystal or a poly-crystal graphene structure containing no complete grain boundary therein that has a thickness greater than 100 nm,. -ef a porosity level less than 10%, an electric conductivity greater than 1,500 S/cm, and a thermal conductivity greater than 600 W/mK and said unitary graphene material has a preferred crystalline orientation, wherein graphene planes in said layer of unitary graphene material are closely packed and parallel to one another having an average mis- orientation angle of less than 10, wherein said layer of unitary graphene material is not an aggregate of discrete graphene platelets, not a catalytic CVD graphene film, and not a graphite. Currently amended
The article of claim 1, wherein the unitary graphene material further contains a discrete filler or reinforcement phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler or reinforcement phase contains a particle, filament, nano-tube, nano-wire, or nano-rod of a metal, ceramic, glass, polymer, carbon, graphite, or a combination thereof. Original
The article of claim 1, wherein the unitary graphene material further contains a discrete solid carbon, graphite, or graphene filler phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler phase is selected from a carbon or graphite fiber, carbon or graphite nano-fiber, carbon nano-tube, carbon nano-rod, meso-phase carbon particle, meso-carbon micro-bead, expanded graphite flake with a thickness greater than 100 nm, single-layer graphene sheet, multi-layer graphene platelet with a thickness less than 100 nm, exfoliated graphite or graphite worm, coke particle, needle coke, carbon black or acetylene black particle, activated carbon particle, or a combination thereof; wherein said carbon, graphite, or graphene filler phase occupies a weight fraction of 0.01% to 99% based on the total composite structure weight. Original
The article of claim 1, wherein said inorganic coating contains: (a) a ceramic material; (b) diamond; (c) a semiconductor element or compound selected from Si, Ge, Ga, gallium nitride, gallium phosphide, gallium arsenide, aluminum nitride, aluminum phosphide, aluminum arsenide, boron nitride, boron phosphide, boron arsenide; or a combination thereof. Original
The article of claim 1, wherein said inorganic coating layer has a thermal conductivity greater than 30 W/mK. Original
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 5%, an inter-graphene spacing less than 0.4 nm, and/or a thermal conductivity of at least 100 W/mK. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 1%, an inter-graphene spacing less than 0.345 nm, a thermal conductivity of at least 1,300 W/mK, and/or an electrical conductivity no less than 3,000 S/cm. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.01%, an inter-graphene spacing less than 0.337 nm, a thermal conductivity of at least 1,500 W/mK, and/or an electrical conductivity no less than 5,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.001%. an inter-graphene spacing less than 0.336 nm. a mosaic spread value no greater than 0.7, a thermal conductivity of at least 1,700 W/mK, and/or an electrical conductivity no less than 10,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an inter-graphene spacing less than 0.336 nm, a mosaic spread value no greater than 0.4, a thermal conductivity greater than 1,700 W/mK, and/or an electrical conductivity greater than 10,000 S/cm. Previously presented
The article of claim 1, wherein the unitary graphene material exhibits an inter- graphene spacing less than 0.337 nm and a mosaic spread value less than 1.0. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of g raphitization no less than 40% and/or a mosaic spread value less than 0.7. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of graphitization no less than 80% and/or a mosaic spread value no greater than 0.4. Original
The article of claim 1. wherein said chemically bonded graphene molecules are parallel to one another. Previously presented
The article of claim 1, wherein the chemically bonded graphene molecules contain a combination of sp 2 and sp 3 electronic configurations. Original
The article of claim 1. wherein said unitary graphene matrix composite has a physical density of at least 1.8 g/cm 3 or a porosity level lower than 5%. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 3,000 S/cm, a thermal conductivity greater than 600 W/mK, a physical density greater than 1.8 g/cm3, and/or a tensile stren g th greater than 40 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 5,000 S/cm, a thermal conductivity greater than 1,000 W/mK, a physical density greater than 1.9 g/cm3, and/or a tensile strength greater than 60 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 15,000 S/cm, a thermal conductivity greater than 1,500 W/mK, a physical density greater than 2.0 g/cm 3, and/or a tensile strength greater than 100 MPa. Original
The article of claim 1, wherein said inorganic coating is in thermal contact with a photovoltaic cell and receives heat therefrom. Original
A concentrated photovoltaic cell comprising a solar collecting and concentrating assembly, a photovoltaic cell that receives solar energy from said solar collecting and concentrating assembly and generates electricity and heat, and an article of claim 1 that receives heat from said photovoltaic cell. Original
Canceled
Canceled
Canceled
. Canceled
. Canceled
. Canceled
. Canceled
. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
inorganic coating-protected unitary graphene heat sink article
concentrated photovoltaic cell assembly with graphene heat sink
Materials described outside the worked examples.
unitary graphene material
inorganic coating (electrically non-conducting)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-graphene spacing (claimed upper bound) | ≤ 0.4 nm | unitary graphene material |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,566,482Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 (a) Example of a solar cell heat-dissipating system; (b) Example of a coated heat transfer member supporting multiple CPV cells; (c) A flow chart …
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG.4 (a) Thermal conductivity values of the GO-derived single unitary graphene layer (A), GO paper (m), and FG foil (*) plotted as a function of the final heat …
FIG.5 X-ray diffraction curves of (a) a GO film (dried GO gel), (b) GO film thermally reduced at 150*C (partially re-graphitized), (c) highly reduced and …
FIG.6 (a) Inter-graphene plane spacing measured by X-ray diffraction; (b) the oxygen content in the GO-derived unitary graphene layer; (c) correlation between …
FIG.7 (a) Thermal conductivity values of the GO-derived unitary graphene layer alone (s), unitary graphene matrix-expanded graphite reinforcement composite (+, …
FIG.8 (a) Tensile strength of unitary graphene matrix material from GO gel, paper of GO platelets (not from gel state), and flexible graphite foil over a range …
FIG. 69(a)- (c) indicate that there are four HTT ranges (100-500*C; 500-1,2500C; 1,250-2,000*C, and > 2,000*C) that lead to four respective oxygen content …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An inorganic coating-protected unitary graphene material heat sink article for concentrated photovoltaic cell heat dissipation, said article comprising at least a layer of unitary graphene material having two primary surfaces and an electrically non- conducting layer of inorganic coating deposited on at least one of said primary surfaces, wherein said unitary graphene material contains chemical bonds between some adjacent graphene molecules, said unitary graphene material having an inter- graphene spacing no greater than 0.40 nm, wherein said layer of unitary graphene material is a single crystal or a poly-crystal graphene structure containing no complete grain boundary therein that has a thickness greater than 100 nm,. -ef a porosity level less than 10%, an electric conductivity greater than 1,500 S/cm, and a thermal conductivity greater than 600 W/mK and said unitary graphene material has a preferred crystalline orientation, wherein graphene planes in said layer of unitary graphene material are closely packed and parallel to one another having an average mis- orientation angle of less than 10, wherein said layer of unitary graphene material is not an aggregate of discrete graphene platelets, not a catalytic CVD graphene film, and not a graphite. Currently amended
The article of claim 1, wherein the unitary graphene material further contains a discrete filler or reinforcement phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler or reinforcement phase contains a particle, filament, nano-tube, nano-wire, or nano-rod of a metal, ceramic, glass, polymer, carbon, graphite, or a combination thereof. Original
The article of claim 1, wherein the unitary graphene material further contains a discrete solid carbon, graphite, or graphene filler phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler phase is selected from a carbon or graphite fiber, carbon or graphite nano-fiber, carbon nano-tube, carbon nano-rod, meso-phase carbon particle, meso-carbon micro-bead, expanded graphite flake with a thickness greater than 100 nm, single-layer graphene sheet, multi-layer graphene platelet with a thickness less than 100 nm, exfoliated graphite or graphite worm, coke particle, needle coke, carbon black or acetylene black particle, activated carbon particle, or a combination thereof; wherein said carbon, graphite, or graphene filler phase occupies a weight fraction of 0.01% to 99% based on the total composite structure weight. Original
The article of claim 1, wherein said inorganic coating contains: (a) a ceramic material; (b) diamond; (c) a semiconductor element or compound selected from Si, Ge, Ga, gallium nitride, gallium phosphide, gallium arsenide, aluminum nitride, aluminum phosphide, aluminum arsenide, boron nitride, boron phosphide, boron arsenide; or a combination thereof. Original
The article of claim 1, wherein said inorganic coating layer has a thermal conductivity greater than 30 W/mK. Original
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 5%, an inter-graphene spacing less than 0.4 nm, and/or a thermal conductivity of at least 100 W/mK. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 1%, an inter-graphene spacing less than 0.345 nm, a thermal conductivity of at least 1,300 W/mK, and/or an electrical conductivity no less than 3,000 S/cm. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.01%, an inter-graphene spacing less than 0.337 nm, a thermal conductivity of at least 1,500 W/mK, and/or an electrical conductivity no less than 5,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.001%. an inter-graphene spacing less than 0.336 nm. a mosaic spread value no greater than 0.7, a thermal conductivity of at least 1,700 W/mK, and/or an electrical conductivity no less than 10,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an inter-graphene spacing less than 0.336 nm, a mosaic spread value no greater than 0.4, a thermal conductivity greater than 1,700 W/mK, and/or an electrical conductivity greater than 10,000 S/cm. Previously presented
The article of claim 1, wherein the unitary graphene material exhibits an inter- graphene spacing less than 0.337 nm and a mosaic spread value less than 1.0. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of g raphitization no less than 40% and/or a mosaic spread value less than 0.7. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of graphitization no less than 80% and/or a mosaic spread value no greater than 0.4. Original
The article of claim 1. wherein said chemically bonded graphene molecules are parallel to one another. Previously presented
The article of claim 1, wherein the chemically bonded graphene molecules contain a combination of sp 2 and sp 3 electronic configurations. Original
The article of claim 1. wherein said unitary graphene matrix composite has a physical density of at least 1.8 g/cm 3 or a porosity level lower than 5%. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 3,000 S/cm, a thermal conductivity greater than 600 W/mK, a physical density greater than 1.8 g/cm3, and/or a tensile stren g th greater than 40 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 5,000 S/cm, a thermal conductivity greater than 1,000 W/mK, a physical density greater than 1.9 g/cm3, and/or a tensile strength greater than 60 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 15,000 S/cm, a thermal conductivity greater than 1,500 W/mK, a physical density greater than 2.0 g/cm 3, and/or a tensile strength greater than 100 MPa. Original
The article of claim 1, wherein said inorganic coating is in thermal contact with a photovoltaic cell and receives heat therefrom. Original
A concentrated photovoltaic cell comprising a solar collecting and concentrating assembly, a photovoltaic cell that receives solar energy from said solar collecting and concentrating assembly and generates electricity and heat, and an article of claim 1 that receives heat from said photovoltaic cell. Original
Canceled
Canceled
Canceled
. Canceled
. Canceled
. Canceled
. Canceled
. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
inorganic coating-protected unitary graphene heat sink article
concentrated photovoltaic cell assembly with graphene heat sink
Materials described outside the worked examples.
unitary graphene material
inorganic coating (electrically non-conducting)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-graphene spacing (claimed upper bound) | ≤ 0.4 nm | unitary graphene material |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,566,482Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 (a) Example of a solar cell heat-dissipating system; (b) Example of a coated heat transfer member supporting multiple CPV cells; (c) A flow chart …
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG.4 (a) Thermal conductivity values of the GO-derived single unitary graphene layer (A), GO paper (m), and FG foil (*) plotted as a function of the final heat …
FIG.5 X-ray diffraction curves of (a) a GO film (dried GO gel), (b) GO film thermally reduced at 150*C (partially re-graphitized), (c) highly reduced and …
FIG.6 (a) Inter-graphene plane spacing measured by X-ray diffraction; (b) the oxygen content in the GO-derived unitary graphene layer; (c) correlation between …
FIG.7 (a) Thermal conductivity values of the GO-derived unitary graphene layer alone (s), unitary graphene matrix-expanded graphite reinforcement composite (+, …
FIG.8 (a) Tensile strength of unitary graphene matrix material from GO gel, paper of GO platelets (not from gel state), and flexible graphite foil over a range …
FIG. 69(a)- (c) indicate that there are four HTT ranges (100-500*C; 500-1,2500C; 1,250-2,000*C, and > 2,000*C) that lead to four respective oxygen content …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An inorganic coating-protected unitary graphene material heat sink article for concentrated photovoltaic cell heat dissipation, said article comprising at least a layer of unitary graphene material having two primary surfaces and an electrically non- conducting layer of inorganic coating deposited on at least one of said primary surfaces, wherein said unitary graphene material contains chemical bonds between some adjacent graphene molecules, said unitary graphene material having an inter- graphene spacing no greater than 0.40 nm, wherein said layer of unitary graphene material is a single crystal or a poly-crystal graphene structure containing no complete grain boundary therein that has a thickness greater than 100 nm,. -ef a porosity level less than 10%, an electric conductivity greater than 1,500 S/cm, and a thermal conductivity greater than 600 W/mK and said unitary graphene material has a preferred crystalline orientation, wherein graphene planes in said layer of unitary graphene material are closely packed and parallel to one another having an average mis- orientation angle of less than 10, wherein said layer of unitary graphene material is not an aggregate of discrete graphene platelets, not a catalytic CVD graphene film, and not a graphite. Currently amended
The article of claim 1, wherein the unitary graphene material further contains a discrete filler or reinforcement phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler or reinforcement phase contains a particle, filament, nano-tube, nano-wire, or nano-rod of a metal, ceramic, glass, polymer, carbon, graphite, or a combination thereof. Original
The article of claim 1, wherein the unitary graphene material further contains a discrete solid carbon, graphite, or graphene filler phase dispersed in said unitary graphene material to form a unitary graphene matrix composite structure and said filler phase is selected from a carbon or graphite fiber, carbon or graphite nano-fiber, carbon nano-tube, carbon nano-rod, meso-phase carbon particle, meso-carbon micro-bead, expanded graphite flake with a thickness greater than 100 nm, single-layer graphene sheet, multi-layer graphene platelet with a thickness less than 100 nm, exfoliated graphite or graphite worm, coke particle, needle coke, carbon black or acetylene black particle, activated carbon particle, or a combination thereof; wherein said carbon, graphite, or graphene filler phase occupies a weight fraction of 0.01% to 99% based on the total composite structure weight. Original
The article of claim 1, wherein said inorganic coating contains: (a) a ceramic material; (b) diamond; (c) a semiconductor element or compound selected from Si, Ge, Ga, gallium nitride, gallium phosphide, gallium arsenide, aluminum nitride, aluminum phosphide, aluminum arsenide, boron nitride, boron phosphide, boron arsenide; or a combination thereof. Original
The article of claim 1, wherein said inorganic coating layer has a thermal conductivity greater than 30 W/mK. Original
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 5%, an inter-graphene spacing less than 0.4 nm, and/or a thermal conductivity of at least 100 W/mK. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 1%, an inter-graphene spacing less than 0.345 nm, a thermal conductivity of at least 1,300 W/mK, and/or an electrical conductivity no less than 3,000 S/cm. Withdrawn
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.01%, an inter-graphene spacing less than 0.337 nm, a thermal conductivity of at least 1,500 W/mK, and/or an electrical conductivity no less than 5,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an oxygen content less than 0.001%. an inter-graphene spacing less than 0.336 nm. a mosaic spread value no greater than 0.7, a thermal conductivity of at least 1,700 W/mK, and/or an electrical conductivity no less than 10,000 S/cm. Previously presented
The article of claim 1, wherein said unitary graphene material has an inter-graphene spacing less than 0.336 nm, a mosaic spread value no greater than 0.4, a thermal conductivity greater than 1,700 W/mK, and/or an electrical conductivity greater than 10,000 S/cm. Previously presented
The article of claim 1, wherein the unitary graphene material exhibits an inter- graphene spacing less than 0.337 nm and a mosaic spread value less than 1.0. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of g raphitization no less than 40% and/or a mosaic spread value less than 0.7. Original
The article of claim 1, wherein the unitary graphene material exhibits a degree of graphitization no less than 80% and/or a mosaic spread value no greater than 0.4. Original
The article of claim 1. wherein said chemically bonded graphene molecules are parallel to one another. Previously presented
The article of claim 1, wherein the chemically bonded graphene molecules contain a combination of sp 2 and sp 3 electronic configurations. Original
The article of claim 1. wherein said unitary graphene matrix composite has a physical density of at least 1.8 g/cm 3 or a porosity level lower than 5%. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 3,000 S/cm, a thermal conductivity greater than 600 W/mK, a physical density greater than 1.8 g/cm3, and/or a tensile stren g th greater than 40 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 5,000 S/cm, a thermal conductivity greater than 1,000 W/mK, a physical density greater than 1.9 g/cm3, and/or a tensile strength greater than 60 MPa. Original
The article of claim 1, wherein said unitary graphene material has an electrical conductivity greater than 15,000 S/cm, a thermal conductivity greater than 1,500 W/mK, a physical density greater than 2.0 g/cm 3, and/or a tensile strength greater than 100 MPa. Original
The article of claim 1, wherein said inorganic coating is in thermal contact with a photovoltaic cell and receives heat therefrom. Original
A concentrated photovoltaic cell comprising a solar collecting and concentrating assembly, a photovoltaic cell that receives solar energy from said solar collecting and concentrating assembly and generates electricity and heat, and an article of claim 1 that receives heat from said photovoltaic cell. Original
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Layer stacks claimed or described, ordered top of device to substrate.
inorganic coating-protected unitary graphene heat sink article
concentrated photovoltaic cell assembly with graphene heat sink
Materials described outside the worked examples.
unitary graphene material
inorganic coating (electrically non-conducting)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after thermal exfoliation of graphite intercalation compounds (GICs) or graphite oxide powders; (b) An SEM …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-graphene spacing (claimed upper bound) | ≤ 0.4 nm | unitary graphene material |
Related documents with shared materials, methods, properties, or citations.
carbon/graphite/graphene filler phase
ceramic material
semiconductor coating (Si, Ge, Ga, GaN, GaP, GaAs, AlN, AlP, AlAs, BN, BP, BAs)
graphene oxide gel
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
electric conductivity lower bound (claim 1) |
| ≥ 1500 S/cm |
unitary graphene material |
thermal conductivity lower bound (claim 1) | ≥ 600 W/mK | unitary graphene material |
inorganic coating thermal conductivity lower bound (claim 6) | ≥ 30 W/mK | inorganic coating (electrically non-conducting) |
inter-graphene spacing (claim 34, composite matrix) | 0.3354–0.345 nm | unitary graphene material |
graphite single crystal basal plane thermal conductivity (background, literature value) | ≤ 1920 W/mK | — |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
Duration | 0.2–1 hour | — |
Thickness | 0.3354–0.4 nm | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 800–1800 W | — |
Pressure | 22–43 MPa | — |
Thickness | 0.6–1 nm | — |
— | 1400–1500 W | — |
Duration | 1–2 hours | — |
Duration | 0.5–2 hours | — |
— | 140–300 W | — |
— | 10–30 W | — |
Duration | 1–3 hours | — |
Pressure | 40–140 MPa | — |
— | 1600–1700 W | — |
Thickness | ≤ 0.344 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 2 nm | — |
— | ≤ 500 W | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 10 nm | — |
— | ≤ 0.1 ev | — |
— | ≤ 1 W | — |
— | ≤ 237 W | — |
— | ≤ 800 W | — |
— | ≤ 600 W | — |
Pressure | ≤ 20 MPa | — |
— | ≥ 1680 W | — |
— | ≥ 1800 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
— | ≥ 800 W | — |
— | ≥ 1 W | — |
— | ≥ 1700 W | — |
— | ≥ 600 W | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 80 MPa | — |
Pressure | ≥ 120 MPa | — |
— | ≥ 950 W | — |
Pressure | ≥ 1 MPa | — |
Thickness | ≤ 0.345 nm | — |
Thickness | ≤ 0.337 nm | — |
Thickness | ≤ 0.336 nm | — |
Thickness | ≥ 0.4 nm | — |
— | ≥ 30 W | — |
— | ≥ 1300 W | — |
— | ≥ 1500 W | — |
Pressure | ≥ 60 MPa | — |
Thickness | 0.4–1 nm | — |
— | 100–450 W | — |
Thickness | ≤ 1 cm | — |
— | ≤ 300 W | — |
Thickness | ≥ 0.344 nm | — |
Pressure | ≥ 150 MPa | — |
carbon/graphite/graphene filler phase
ceramic material
semiconductor coating (Si, Ge, Ga, GaN, GaP, GaAs, AlN, AlP, AlAs, BN, BP, BAs)
graphene oxide gel
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
electric conductivity lower bound (claim 1) |
| ≥ 1500 S/cm |
unitary graphene material |
thermal conductivity lower bound (claim 1) | ≥ 600 W/mK | unitary graphene material |
inorganic coating thermal conductivity lower bound (claim 6) | ≥ 30 W/mK | inorganic coating (electrically non-conducting) |
inter-graphene spacing (claim 34, composite matrix) | 0.3354–0.345 nm | unitary graphene material |
graphite single crystal basal plane thermal conductivity (background, literature value) | ≤ 1920 W/mK | — |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
Duration | 0.2–1 hour | — |
Thickness | 0.3354–0.4 nm | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 800–1800 W | — |
Pressure | 22–43 MPa | — |
Thickness | 0.6–1 nm | — |
— | 1400–1500 W | — |
Duration | 1–2 hours | — |
Duration | 0.5–2 hours | — |
— | 140–300 W | — |
— | 10–30 W | — |
Duration | 1–3 hours | — |
Pressure | 40–140 MPa | — |
— | 1600–1700 W | — |
Thickness | ≤ 0.344 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 2 nm | — |
— | ≤ 500 W | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 10 nm | — |
— | ≤ 0.1 ev | — |
— | ≤ 1 W | — |
— | ≤ 237 W | — |
— | ≤ 800 W | — |
— | ≤ 600 W | — |
Pressure | ≤ 20 MPa | — |
— | ≥ 1680 W | — |
— | ≥ 1800 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
— | ≥ 800 W | — |
— | ≥ 1 W | — |
— | ≥ 1700 W | — |
— | ≥ 600 W | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 80 MPa | — |
Pressure | ≥ 120 MPa | — |
— | ≥ 950 W | — |
Pressure | ≥ 1 MPa | — |
Thickness | ≤ 0.345 nm | — |
Thickness | ≤ 0.337 nm | — |
Thickness | ≤ 0.336 nm | — |
Thickness | ≥ 0.4 nm | — |
— | ≥ 30 W | — |
— | ≥ 1300 W | — |
— | ≥ 1500 W | — |
Pressure | ≥ 60 MPa | — |
Thickness | 0.4–1 nm | — |
— | 100–450 W | — |
Thickness | ≤ 1 cm | — |
— | ≤ 300 W | — |
Thickness | ≥ 0.344 nm | — |
Pressure | ≥ 150 MPa | — |
carbon/graphite/graphene filler phase
ceramic material
semiconductor coating (Si, Ge, Ga, GaN, GaP, GaAs, AlN, AlP, AlAs, BN, BP, BAs)
graphene oxide gel
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
electric conductivity lower bound (claim 1) |
| ≥ 1500 S/cm |
unitary graphene material |
thermal conductivity lower bound (claim 1) | ≥ 600 W/mK | unitary graphene material |
inorganic coating thermal conductivity lower bound (claim 6) | ≥ 30 W/mK | inorganic coating (electrically non-conducting) |
inter-graphene spacing (claim 34, composite matrix) | 0.3354–0.345 nm | unitary graphene material |
graphite single crystal basal plane thermal conductivity (background, literature value) | ≤ 1920 W/mK | — |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
Duration | 0.2–1 hour | — |
Thickness | 0.3354–0.4 nm | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 800–1800 W | — |
Pressure | 22–43 MPa | — |
Thickness | 0.6–1 nm | — |
— | 1400–1500 W | — |
Duration | 1–2 hours | — |
Duration | 0.5–2 hours | — |
— | 140–300 W | — |
— | 10–30 W | — |
Duration | 1–3 hours | — |
Pressure | 40–140 MPa | — |
— | 1600–1700 W | — |
Thickness | ≤ 0.344 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 2 nm | — |
— | ≤ 500 W | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 10 nm | — |
— | ≤ 0.1 ev | — |
— | ≤ 1 W | — |
— | ≤ 237 W | — |
— | ≤ 800 W | — |
— | ≤ 600 W | — |
Pressure | ≤ 20 MPa | — |
— | ≥ 1680 W | — |
— | ≥ 1800 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
— | ≥ 800 W | — |
— | ≥ 1 W | — |
— | ≥ 1700 W | — |
— | ≥ 600 W | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 80 MPa | — |
Pressure | ≥ 120 MPa | — |
— | ≥ 950 W | — |
Pressure | ≥ 1 MPa | — |
Thickness | ≤ 0.345 nm | — |
Thickness | ≤ 0.337 nm | — |
Thickness | ≤ 0.336 nm | — |
Thickness | ≥ 0.4 nm | — |
— | ≥ 30 W | — |
— | ≥ 1300 W | — |
— | ≥ 1500 W | — |
Pressure | ≥ 60 MPa | — |
Thickness | 0.4–1 nm | — |
— | 100–450 W | — |
Thickness | ≤ 1 cm | — |
— | ≤ 300 W | — |
Thickness | ≥ 0.344 nm | — |
Pressure | ≥ 150 MPa | — |
carbon/graphite/graphene filler phase
ceramic material
semiconductor coating (Si, Ge, Ga, GaN, GaP, GaAs, AlN, AlP, AlAs, BN, BP, BAs)
graphene oxide gel
FIG.3 (a) A SEM image of a GO-derived graphene monolithic wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
electric conductivity lower bound (claim 1) |
| ≥ 1500 S/cm |
unitary graphene material |
thermal conductivity lower bound (claim 1) | ≥ 600 W/mK | unitary graphene material |
inorganic coating thermal conductivity lower bound (claim 6) | ≥ 30 W/mK | inorganic coating (electrically non-conducting) |
inter-graphene spacing (claim 34, composite matrix) | 0.3354–0.345 nm | unitary graphene material |
graphite single crystal basal plane thermal conductivity (background, literature value) | ≤ 1920 W/mK | — |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
Duration | 0.2–1 hour | — |
Thickness | 0.3354–0.4 nm | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 800–1800 W | — |
Pressure | 22–43 MPa | — |
Thickness | 0.6–1 nm | — |
— | 1400–1500 W | — |
Duration | 1–2 hours | — |
Duration | 0.5–2 hours | — |
— | 140–300 W | — |
— | 10–30 W | — |
Duration | 1–3 hours | — |
Pressure | 40–140 MPa | — |
— | 1600–1700 W | — |
Thickness | ≤ 0.344 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 2 nm | — |
— | ≤ 500 W | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 10 nm | — |
— | ≤ 0.1 ev | — |
— | ≤ 1 W | — |
— | ≤ 237 W | — |
— | ≤ 800 W | — |
— | ≤ 600 W | — |
Pressure | ≤ 20 MPa | — |
— | ≥ 1680 W | — |
— | ≥ 1800 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
— | ≥ 800 W | — |
— | ≥ 1 W | — |
— | ≥ 1700 W | — |
— | ≥ 600 W | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 80 MPa | — |
Pressure | ≥ 120 MPa | — |
— | ≥ 950 W | — |
Pressure | ≥ 1 MPa | — |
Thickness | ≤ 0.345 nm | — |
Thickness | ≤ 0.337 nm | — |
Thickness | ≤ 0.336 nm | — |
Thickness | ≥ 0.4 nm | — |
— | ≥ 30 W | — |
— | ≥ 1300 W | — |
— | ≥ 1500 W | — |
Pressure | ≥ 60 MPa | — |
Thickness | 0.4–1 nm | — |
— | 100–450 W | — |
Thickness | ≤ 1 cm | — |
— | ≤ 300 W | — |
Thickness | ≥ 0.344 nm | — |
Pressure | ≥ 150 MPa | — |