GRAPHENE ELECTRONIC DEVICE

Yong Ju YUN

Patent

Atlas literature

Patent

US 9,257,510

GRAPHENE ELECTRONIC DEVICE

Yong Ju YUN

Drawings

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

FIG. 1

FIGS. 1 1 A and 12A are plan views illustrating the graphene electronic device according to other example embodiments of the inventive concept, and

FIG. 2

FIG. 2A. [0032] The electrodes 20 may be formed using an optical lithography process or an e-beam lithography process. The ﬁrst electrode 21 and the second …

FIG. 3

FIGS. 3A and 3B, a mask 30 may be provided on the electrodes 20. The mask 30 may be in contact with top surfaces of the electrodes 20. The mask 30 may be …

FIG. 4

FIGS. 4A and 4B. The supporting patterns 40 may be neutralized using ammonia solution or sodium hydroxide solution (Na O H), thereby having insolubility. …

FIG. 5

FIG. 5. For example, the electrospinning apparatus 100 may include a current collector 55. The current collector 55 may include a ﬁrst supporting part 54 and a …

FIG. 6

FIG. 6B. The 15 graphene oxide composite patterns 60 may be formed on surfaces of the electrodes 20 to connect the ﬁrst electrode 21 to the second electrode …

FIG. 7

FIG. 7, the substrate 10 provided with the supporting patterns 40 may be dipped into graphene-oxide-containing solution 61. The 25 supporting patterns 40 may …

FIG. 8

FIG. 8 is a schematic diagram illustrating a portion Q of

FIG. 9

FIG. 9B. As the result of the removal of the supporting patterns 40, gap regions 70 that are empty spaces may be formed in the graphene oxide structures 63. …

FIG. 10

FIGS. 10 and 1 1 A through 11 C, the graphene oxide composite patterns 5 60 may be formed by performing the steps of S10, S 20, and S 30, which were described …

FIG. 11

FIG. 11C is a sectional view of a portion S of

FIG. 12

FIG. 12A.

Claims

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

1 independent · 2 dependent

1
Independent
has have been amended. A listing of the claims follows and replaces all prior listing of the claims. LISTING OF THE CLAIMS
1. 2
  Dependent← claim 1graphenegraphene oxidegraphene electronic device
  The device of claim 1, wherein each of the graphene channels comprises graphene or graphene oxide.
2. 3
  Dependent← claim 1graphene electronic device
  The device of claim 1, wherein each of the graphene channels has an inner diameter of 1 nm to 1 00 pm. Amendment (14/566,660) -3-

Device structures

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

graphene electronic device

graphenechannel

drain_electrodedrain electrode

source_electrodesource electrode

substratesubstrate

Materials

Materials described outside the worked examples.

graphene

Channel Material

graphene oxide

Channel Material Precursor

Process steps

Additional fabrication and treatment steps described in the patent.

Electrospinning

Step 1

Process details

notes:Polymer solution electrospun on first and second electrodes using a mask exposing end portions of electrodes and substrate between them; supporting patterns formed spaced apart from substrate to connect end portions of first and second electrodes

Materials:polymer fibers

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
inner diameter of graphene channels (1 nm to 100 µm)	1–100000	—
graphene surface area (background reference value)	2650

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