Patent
US 9,406,513GRAPHENE LAMINATE WITH BAND GAP
Si-Young LEE
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,406,513Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG 1 is a sectional view of a graphene laminate according to an example embodiment [14]
FIG 2 illustrates a graphene laminate including two AB-stacked grapheme sheets between polyvinylidene fluoride (PVDF) layers having permanent dipoles, and [15]
FIG 3 illustrates a calculated band structure of the graphene laminate of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene laminate comprising: a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface; a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quaraz, lead zirconate titanate (PZT, Pb[Zr X TiI_]O 3, where Oxs 1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zin c oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof. Page 2 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer for m an AB-stacked graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 1.
A sensor device comprising the graphene laminate of claim 1.
A method of preparing a graphene laminate with a band gap, the method comprising: applying an electric field to a laminate, the laminate including, a first piezoelectric material layer, a first graphene layer underlying the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer underlying the second graphene layer. Page 3 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US withdrawn
The method of claim 9, wherein the applying an electric field to the laminate comprises: disposing the laminate between two electrodes; and applying a voltage across the two electrodes. withdrawn
A graphene laminate comprising: a first piezoelectric material layer; a first graphene layer underlying the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer underlying the second graphene layer.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quartz, lead zirconate titanate (PZT, SVG 14186055.12-21-2015.IIRHITGJPXXIFW2.CLM.3.16.1377.2150.1681.2196.svg 0.153 1.013 Chemistry Black and white where Osxs1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zinc oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials. Page 4 Application No.: 14/186,055 Attorney Docket No.: 2557 SI -002005-US
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer fo rm an AB-stacked graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 12.
A sensor device comprising the graphene laminate of claim 12. *** END CLAIM LISTING
Layer stacks claimed or described, ordered top of device to substrate.
graphene laminate
switching device
No layer stack recorded.
sensor device
No layer stack recorded.
Materials described outside the worked examples.
graphene
piezoelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG 3 illustrates a calculated band structure of the graphene laminate of
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
band gap of AB-stacked bilayer graphene in graphene laminate (claimed range) | 0–0.3 eV | AB-stacked bilayer graphene |
calculated band gap of graphene laminate with PVDF layers (FIG 2/FIG 3) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,406,513Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG 1 is a sectional view of a graphene laminate according to an example embodiment [14]
FIG 2 illustrates a graphene laminate including two AB-stacked grapheme sheets between polyvinylidene fluoride (PVDF) layers having permanent dipoles, and [15]
FIG 3 illustrates a calculated band structure of the graphene laminate of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene laminate comprising: a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface; a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quaraz, lead zirconate titanate (PZT, Pb[Zr X TiI_]O 3, where Oxs 1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zin c oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof. Page 2 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer for m an AB-stacked graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 1.
A sensor device comprising the graphene laminate of claim 1.
A method of preparing a graphene laminate with a band gap, the method comprising: applying an electric field to a laminate, the laminate including, a first piezoelectric material layer, a first graphene layer underlying the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer underlying the second graphene layer. Page 3 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US withdrawn
The method of claim 9, wherein the applying an electric field to the laminate comprises: disposing the laminate between two electrodes; and applying a voltage across the two electrodes. withdrawn
A graphene laminate comprising: a first piezoelectric material layer; a first graphene layer underlying the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer underlying the second graphene layer.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quartz, lead zirconate titanate (PZT, SVG 14186055.12-21-2015.IIRHITGJPXXIFW2.CLM.3.16.1377.2150.1681.2196.svg 0.153 1.013 Chemistry Black and white where Osxs1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zinc oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials. Page 4 Application No.: 14/186,055 Attorney Docket No.: 2557 SI -002005-US
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer fo rm an AB-stacked graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 12.
A sensor device comprising the graphene laminate of claim 12. *** END CLAIM LISTING
Layer stacks claimed or described, ordered top of device to substrate.
graphene laminate
switching device
No layer stack recorded.
sensor device
No layer stack recorded.
Materials described outside the worked examples.
graphene
piezoelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG 3 illustrates a calculated band structure of the graphene laminate of
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
band gap of AB-stacked bilayer graphene in graphene laminate (claimed range) | 0–0.3 eV | AB-stacked bilayer graphene |
calculated band gap of graphene laminate with PVDF layers (FIG 2/FIG 3) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,406,513Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG 1 is a sectional view of a graphene laminate according to an example embodiment [14]
FIG 2 illustrates a graphene laminate including two AB-stacked grapheme sheets between polyvinylidene fluoride (PVDF) layers having permanent dipoles, and [15]
FIG 3 illustrates a calculated band structure of the graphene laminate of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene laminate comprising: a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface; a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quaraz, lead zirconate titanate (PZT, Pb[Zr X TiI_]O 3, where Oxs 1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zin c oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof. Page 2 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer for m an AB-stacked graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 1.
A sensor device comprising the graphene laminate of claim 1.
A method of preparing a graphene laminate with a band gap, the method comprising: applying an electric field to a laminate, the laminate including, a first piezoelectric material layer, a first graphene layer underlying the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer underlying the second graphene layer. Page 3 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US withdrawn
The method of claim 9, wherein the applying an electric field to the laminate comprises: disposing the laminate between two electrodes; and applying a voltage across the two electrodes. withdrawn
A graphene laminate comprising: a first piezoelectric material layer; a first graphene layer underlying the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer underlying the second graphene layer.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quartz, lead zirconate titanate (PZT, SVG 14186055.12-21-2015.IIRHITGJPXXIFW2.CLM.3.16.1377.2150.1681.2196.svg 0.153 1.013 Chemistry Black and white where Osxs1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zinc oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials. Page 4 Application No.: 14/186,055 Attorney Docket No.: 2557 SI -002005-US
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer fo rm an AB-stacked graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 12.
A sensor device comprising the graphene laminate of claim 12. *** END CLAIM LISTING
Layer stacks claimed or described, ordered top of device to substrate.
graphene laminate
switching device
No layer stack recorded.
sensor device
No layer stack recorded.
Materials described outside the worked examples.
graphene
piezoelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG 3 illustrates a calculated band structure of the graphene laminate of
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
band gap of AB-stacked bilayer graphene in graphene laminate (claimed range) | 0–0.3 eV | AB-stacked bilayer graphene |
calculated band gap of graphene laminate with PVDF layers (FIG 2/FIG 3) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,406,513Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG 1 is a sectional view of a graphene laminate according to an example embodiment [14]
FIG 2 illustrates a graphene laminate including two AB-stacked grapheme sheets between polyvinylidene fluoride (PVDF) layers having permanent dipoles, and [15]
FIG 3 illustrates a calculated band structure of the graphene laminate of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene laminate comprising: a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface; a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quaraz, lead zirconate titanate (PZT, Pb[Zr X TiI_]O 3, where Oxs 1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zin c oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof. Page 2 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US
The graphene laminate of claim 1, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer for m an AB-stacked graphene sheet.
The graphene laminate of claim 1, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 1.
A sensor device comprising the graphene laminate of claim 1.
A method of preparing a graphene laminate with a band gap, the method comprising: applying an electric field to a laminate, the laminate including, a first piezoelectric material layer, a first graphene layer underlying the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer underlying the second graphene layer. Page 3 Application No.: 14/186,055 Attorney Docket No.: 2557S I -002005-US withdrawn
The method of claim 9, wherein the applying an electric field to the laminate comprises: disposing the laminate between two electrodes; and applying a voltage across the two electrodes. withdrawn
A graphene laminate comprising: a first piezoelectric material layer; a first graphene layer underlying the first piezoelectric material layer; a second graphene layer underlying the first graphene layer; and a second piezoelectric material layer underlying the second graphene layer.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of quartz, lead zirconate titanate (PZT, SVG 14186055.12-21-2015.IIRHITGJPXXIFW2.CLM.3.16.1377.2150.1681.2196.svg 0.153 1.013 Chemistry Black and white where Osxs1), gallium orthophosphate, langasite, barium titanate, lead titanate, potassium niobate, zinc oxide, sodium tungstate, lithium tantalate, lithium niobate, polyvinylidene fluoride (PVDF), poly[(vinylidenefluoride-co-trifluoroethylene (PVDF-TrFE), and a mixture thereof.
The graphene laminate of claim 12, wherein the first piezoelectric material layer and the second piezoelectric material layer comprise one of a same material and different materials. Page 4 Application No.: 14/186,055 Attorney Docket No.: 2557 SI -002005-US
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer are each a single-layered graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer fo rm an AB-stacked graphene sheet.
The graphene laminate of claim 12, wherein the first graphene layer and the second graphene layer have a band gap greater than O eV to about 0.3eV.
A switching device comprising the graphene laminate of claim 12.
A sensor device comprising the graphene laminate of claim 12. *** END CLAIM LISTING
Layer stacks claimed or described, ordered top of device to substrate.
graphene laminate
switching device
No layer stack recorded.
sensor device
No layer stack recorded.
Materials described outside the worked examples.
graphene
piezoelectric material
Measurements and analyses referenced in the patent, with their drawing references.
FIG 3 illustrates a calculated band structure of the graphene laminate of
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
band gap of AB-stacked bilayer graphene in graphene laminate (claimed range) | 0–0.3 eV | AB-stacked bilayer graphene |
calculated band gap of graphene laminate with PVDF layers (FIG 2/FIG 3) |
Related documents with shared materials, methods, properties, or citations.
quartz
SiO₂
lead zirconate titanate
Pb[ZrxTi(1-x)]O₃
gallium orthophosphate
GaPO₄
langasite
barium titanate
BaTiO₃
lead titanate
PbTiO₃
potassium niobate
KNbO₃
zinc oxide
ZnO
sodium tungstate
lithium tantalate
LiTaO₃
lithium niobate
LiNbO₃
polyvinylidene fluoride
PVDF
poly(vinylidenefluoride-co-trifluoroethylene)
PVDF-TrFE
AB-stacked bilayer graphene
AB-stacked bilayer graphene |
— | ≥ 0 eV | — |
quartz
SiO₂
lead zirconate titanate
Pb[ZrxTi(1-x)]O₃
gallium orthophosphate
GaPO₄
langasite
barium titanate
BaTiO₃
lead titanate
PbTiO₃
potassium niobate
KNbO₃
zinc oxide
ZnO
sodium tungstate
lithium tantalate
LiTaO₃
lithium niobate
LiNbO₃
polyvinylidene fluoride
PVDF
poly(vinylidenefluoride-co-trifluoroethylene)
PVDF-TrFE
AB-stacked bilayer graphene
AB-stacked bilayer graphene |
— | ≥ 0 eV | — |
quartz
SiO₂
lead zirconate titanate
Pb[ZrxTi(1-x)]O₃
gallium orthophosphate
GaPO₄
langasite
barium titanate
BaTiO₃
lead titanate
PbTiO₃
potassium niobate
KNbO₃
zinc oxide
ZnO
sodium tungstate
lithium tantalate
LiTaO₃
lithium niobate
LiNbO₃
polyvinylidene fluoride
PVDF
poly(vinylidenefluoride-co-trifluoroethylene)
PVDF-TrFE
AB-stacked bilayer graphene
AB-stacked bilayer graphene |
— | ≥ 0 eV | — |
quartz
SiO₂
lead zirconate titanate
Pb[ZrxTi(1-x)]O₃
gallium orthophosphate
GaPO₄
langasite
barium titanate
BaTiO₃
lead titanate
PbTiO₃
potassium niobate
KNbO₃
zinc oxide
ZnO
sodium tungstate
lithium tantalate
LiTaO₃
lithium niobate
LiNbO₃
polyvinylidene fluoride
PVDF
poly(vinylidenefluoride-co-trifluoroethylene)
PVDF-TrFE
AB-stacked bilayer graphene
AB-stacked bilayer graphene |
— | ≥ 0 eV | — |