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1. US20120196074 - Graphene sheet and method for producing the same

Office United States of America
Application Number 13393249
Application Date 31.08.2010
Publication Number 20120196074
Publication Date 02.08.2012
Grant Number 08697230
Grant Date 15.04.2014
Publication Kind B2
IPC
B32B 15/04
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products essentially comprising metal
04comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C01B 31/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31Carbon; Compounds thereof
CPC
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
C01B 32/188
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
182Graphene
184Preparation
188by epitaxial growth
C01B 2204/02
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
02Single layer graphene
C01B 2204/04
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
04Specific amount of layers or specific thickness
C01B 2204/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
20Graphene characterized by its properties
32Size or surface area
Applicants Ago Hiroki
Kyushu University
Ito Yoshito
Tanaka Izumi
Mizuno Seigi
Tsuji Masaharu
Inventors Ago Hiroki
Ito Yoshito
Tanaka Izumi
Mizuno Seigi
Tsuji Masaharu
Agents Wenderoth, Lind & Ponack, L.L.P.
Priority Data 2009-200982 31.08.2009 JP
2010-045930 02.03.2010 JP
Title
(EN) Graphene sheet and method for producing the same
Abstract
(EN)

To provide a graphene sheet that has a large area, is homogeneous, and has a small amount of domain boundaries, a novel method for producing a graphene sheet suitable for industrial applications, such as application to electronics, that is capable of producing a graphene sheet that has well aligned crystal orientation at a low cost, and a graphene sheet.

In the method for producing a graphene sheet of the present invention, a substrate containing a single crystal substrate having formed on the surface thereof an epitaxial metal film is used, and a graphene sheet is grown by making a carbon material into contact with the surface of the epitaxial metal film. In the graphene sheet of the present invention, the graphene sheet is constituted by a number of graphene domains, the domains each have an area of from 0.000001 μm2 to 100,000 mm2, and the orientations of 6-membered rings in the domains are averagely aligned in a single direction over the graphene sheet.

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