FeCl3-Based Few-Layer Graphene Intercalation Compounds: Single Linear Dispersion Electronic Band Structure and Strong Charge Transfer Doping

被引：164

作者：

Zhan, Da ^{[1
]}

Sun, Li ^{[1
]}

Ni, Zhen Hua ^{[2
]}

Liu, Lei ^{[1
]}

Fan, Xiao Feng ^{[1
]}

Wang, Yingying ^{[1
]}

Yu, Ting ^{[1
]}

Lam, Yeng Ming ^{[3
]}

Huang, Wei ^{[4
]}

Shen, Ze Xiang ^{[1
]}

机构：

[1] Nanyang Technol Univ, Div Phys & Appl Phys, Singapore 637371, Singapore

[2] Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[4] Nanjing Univ Posts & Telecommun, Inst Adv Mat, Nanjing 210046, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 20期

关键词：

RAMAN-SCATTERING; GRAPHITE; APPROXIMATION; GAS;

D O I：

10.1002/adfm.201000641

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Graphene has attracted much attention since its first discovery in 2004. Various approaches have been proposed to control its physical and electronic properties. Here, it is reported that graphene-based intercalation is an efficient method to modify the electronic properties of few-layer graphene (FLG). FeCl3 intercalated FLGs are successfully prepared by the two-zone vapor transport method. This is the first report on full intercalation for graphene samples. The features of the Raman G peak of such FLG intercalation compounds (FLGIC) are in good agreement with their full intercalation structures. The FLGICs present single Lorentzian 2D peaks, similar to that of single-layer graphene, indicating the loss of electronic coupling between adjacent graphene layers. First principle calculations further reveal that the band structure of FLGIC is similar to single-layer graphene but with a strong doping effect due to the charge transfer from graphene to FeCl3. The successful fabrication of FLGIC opens a new way to modify properties of FLG for fundamental studies and future applications.

引用

页码：3504 / 3509

页数：6