公开(公告)号：US09534312B2

公开(公告)日：2017-01-03

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 ,  B82Y30/00 ,  B82Y40/00

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.

Abstract translation: 单晶石墨烯片包括其中多个碳原子彼此共价结合的多环芳族分子，单晶石墨烯片包含约1层至约300层; 并且其中拉曼D带强度与拉曼G带强度的峰值比等于或小于0.2。 还描述了制备单晶石墨烯片的方法，该方法包括形成包括单晶石墨化金属催化剂片的催化剂层; 在催化剂层上设置碳质材料; 以及在惰性气氛和还原气氛中的至少一种中对所述催化剂层和所述碳质材料进行热处理。 还描述了包括单晶石墨烯片的透明电极。