Roll-to-Roll Transfer Method of Graphene, Graphene Roll Produced by the Method, and Roll-to-Roll Transfer Equipment for Graphene

Byung Hee Hong

Patent details

Patent

US 9,782,963

Roll-to-Roll Transfer Method of Graphene, Graphene Roll Produced by the Method, and Roll-to-Roll Transfer Equipment for Graphene

Byung Hee Hong

Drawings

Patent drawings and their descriptions. Click a drawing to enlarge it.

FIG. 1

FIG. 2

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FIG. 12

FIG. 13

FIG. 14

FIG. 15

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

2 independent · 4 dependent

1
Independentgrapheneforming substratefirst flexible substrategraphene roll-to-roll transfer apparatus
A graphene roll-to-roll transfer apparatus for transferring a graphene layer formed on a forming substrate to a ﬂexible substrate, the apparatus comprising: a ﬁrst roller unit conﬁgured to bring a ﬁrst ﬂexible substrate into contact with a the graphene layer formed on a-the forming substrate by passing the ﬁrst ﬂexible substrate, which is separate from the graphene layer formed on the forming substrate, through the ﬁrst roller unit together with the graphene layer formed on the forming substrate to form a layered structure including the forming substrate, the ﬁrst ﬂexible substrate, and the graphene layer provided between the forming substrate and the ﬁrst ﬂexile substrate; an etching chamber provided downstream of the ﬁrst roller unit for holding an etching solution and for receiving the layered structure passed through the ﬁrst roller unit; and a second roller unit provided to be at least partially immersed in the etching solution in the etching chamber and conﬁgured to immerse the layered structure from the ﬁrst roller unit into an the etching solution while passing the layered structure through the second roller unit to remove the forming substrate from the layered structure, and transfer the graphene layer onto the ﬁrst ﬂexible substrate at the same time.
1. 2
  Dependent← claim 1grapheneforming substratesecond flexible substrategraphene roll-to-roll transfer apparatus
  The graphene roll-to-roll transfer apparatus of claim 1, further comprising: 2 a third roller unit that transfers the graphene layer transferred onto the ﬁrst ﬂexible substrate onto a second ﬂexible substrate.
2. 6
  Dependent← claim 1, claim 2grapheneforming substrateprotection layergraphene roll-to-roll transfer apparatus
  The graphene roll-to-roll transfer apparatus of roller unit that forms a protection layer on the substrate. 4 layered structure. claim 2, further comprising: an additional roller the third roller unit, and conﬁgured to perform a layered structure. claim 1, further comprising: 3 an additional graphene layer formed on the ﬁrst ﬂexible
5
Independentgraphenegraphene roll-to-roll transfer apparatus
The graphene roll-to-roll transfer apparatus of unit provided between the second roller unit and cleaning process and/or drying process to the

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

graphene roll-to-roll transfer apparatus

first flexible substratetransfer substrate

graphenechannel/active layer

forming substrategrowth substrate

Materials

Materials described outside the worked examples.

graphene

Transferred Layer

forming substrate

Growth Substrate

Process steps

Additional fabrication and treatment steps described in the patent.

Roll To Roll Transfer

Step 1

Process details

step 1:Form layered structure (forming substrate/graphene layer/first flexible substrate) using first roller unit

step 2:Immerse layered structure in etching solution using second roller unit to remove forming substrate and transfer graphene onto first flexible substrate simultaneously

optional step 3:Transfer graphene from first flexible substrate to second flexible substrate using third roller unit

optional step 4:

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Roll-to-Roll Transfer Method of Graphene, Graphene Roll Produced by the Method, and Roll-to-Roll Transfer Equipment for Graphene | Matter42 Literature