An Exchange Intercalation Mechanism for the Formation of a Two-Dimensional Si Structure Underneath Graphene

	An Exchange Intercalation Mechanism for the Formation of a Two-Dimensional Si Structure Underneath Graphene
	Cui, Yi 1; Gao, Junfeng 2; Jin, Li 1; Zhao, Jijun 2; Tan, Dali 1; Fu, Qiang 1; Bao, Xinhe 1
刊名	nano research
	2012-05-01
卷号	5 期号:5 页码:352-360
关键词	Graphene photoemission electron microscopy (PEEM) low energy electron microscopy (LEEM) intercalation silicon Ru(0001)
英文摘要	a two-dimensional (2d) si film can form between a graphene overlayer and a ru(0001) substrate through an intercalation process. at the graphene/2d-si/ru(0001) surface, the topmost graphene layer is decoupled from the ru substrate and becomes quasi-freestanding. the interfacial si layers show high stability due to the protection from the graphene cover. surface science measurements indicate that the surface si atoms can penetrate through the graphene lattice, and density functional theory calculations suggest a si-c exchange mechanism facilitates the penetration of si at mild temperatures. the new mechanism may be involved for other elements on graphene, if they can bond strongly with carbon. this finding opens a new route to form 2d interfacial layers between graphene and substrates.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary ; physics, applied
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science ; physics
关键词[WOS]	bimetallic surfaces ; ni(111) surface ; ru(0001) ; growth ; deposition ; clusters ; films
收录类别	SCI
语种	英语
WOS记录号	WOS:000304114100006
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142970]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Elect Beams, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Cui, Yi,Gao, Junfeng,Jin, Li,et al. An Exchange Intercalation Mechanism for the Formation of a Two-Dimensional Si Structure Underneath Graphene[J]. nano research,2012,5(5):352-360.
APA	Cui, Yi.,Gao, Junfeng.,Jin, Li.,Zhao, Jijun.,Tan, Dali.,...&Bao, Xinhe.(2012).An Exchange Intercalation Mechanism for the Formation of a Two-Dimensional Si Structure Underneath Graphene.nano research,5(5),352-360.
MLA	Cui, Yi,et al."An Exchange Intercalation Mechanism for the Formation of a Two-Dimensional Si Structure Underneath Graphene".nano research 5.5(2012):352-360.