Structure and property of nanoporous double-layer graphene

2012 Fiscal Year Final Research Report

• Project/Area Number: 22510108
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanostructural science
• Research Institution: Aoyama Gakuin University
• Principal Investigator: NAKADA Kyoko 青山学院大学, 理工学部, 准教授 (20272742)
• Project Period (FY): 2010 – 2012
• Keywords: グラフェン / 二層グラフェン / 多孔構造 / ナノ材料 / ナノカーボン

Research Abstract

Porous structure of double-layer graphene was proposed as a model system for the multilayer graphene with fused edges that had been realized by heat-treatment experiments and a structure-generating algorithm was devised. The nanoporous structure is generated by removing carbon atoms within a region on both top and bottom graphene layers and then periodically arranging the nanopores thus generated. Around the juncture of nanopores one needs 12 heptagons for each. The π-electronic states of smaller nanoporous double-layer graphene depends on the arrangement of nanopores and heptagons. The π-electronic states of larger ones is, however, metallic irrespective of structure and exhibits special states near the Fermi level that are localized to the nanopore region