公开(公告)号：US20160160379A1

公开(公告)日：2016-06-09

申请号：US15042438

申请日：2016-02-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-young CHOI ,  Hyeon-Jin SHIN ,  Seon-mi YOON ,  Jai-yong HAN

IPC: C30B1/10 ,  C30B29/02 ,  C01B31/04

CPC classification number: C30B1/10 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/188 ,  C01B2204/04 ,  C30B29/02

Abstract: A single-crystal graphene sheet includes a polycyclic aromatic molecule wherein a plurality of carbon atoms are covalently bound to each other, the single-crystal graphene sheet comprising between about 1 layer to about 300 layers; and wherein a peak ratio of a Raman D band intensity to a Raman G band intensity is equal to or less than 0.2. Also described is a method for preparing a single-crystal graphene sheet, the method includes forming a catalyst layer, which includes a single-crystal graphitizing metal catalyst sheet; disposing a carbonaceous material on the catalyst layer; and heat-treating the catalyst layer and the carbonaceous material in at least one of an inert atmosphere and a reducing atmosphere. Also described is a transparent electrode including a single-crystal graphene sheet.