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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
Prior PCT appl.: Application Number:PCTJP2010064848 ; Publication Number: Click to see the data
IPC:
B32B 15/04
C01B 31/00
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
04
comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31
Carbon; Compounds thereof
CPC:
B82Y 40/00
B82Y 30/00
C01B 32/188
C01B 2204/02
C01B 2204/04
C01B 2204/32
Y10T 428/21
Y10T 428/24777
Y10T 428/26
Y10T 428/31678
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: front page image
(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.


Also published as:
JPWO2011025045WO/2011/025045