Electronic decoupling of an epitaxial graphene monolayer by gold intercalation

被引：213

作者：

Gierz, Isabella ^{[1
]}

Suzuki, Takayuki ^{[1
]}

Weitz, R. Thomas ^{[1
]}

Lee, Dong Su ^{[1
]}

Krauss, Benjamin ^{[1
]}

Riedl, Christian ^{[1
]}

Starke, Ulrich ^{[1
]}

Hoechst, Hartmut ^{[2
]}

Smet, Jurgen H. ^{[1
]}

Ast, Christian R. ^{[1
]}

Kern, Klaus ^{[1
,3
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Wisconsin Madison, Ctr Synchrotron Radiat, Stoughton, WI 53589 USA

[3] Ecole Polytech Fed Lausanne, Inst Phys Matiere Condensee, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 23期

基金：

美国国家科学基金会;

关键词：

GRAPHITE MONOLAYER; RAMAN-SPECTROSCOPY; NI(111);

D O I：

10.1103/PhysRevB.81.235408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The application of graphene in electronic devices requires large-scale epitaxial growth. The presence of the substrate, however, usually reduces the charge-carrier mobility considerably. We show that it is possible to decouple the partially sp(3)-hybridized first graphitic layer formed on the Si-terminated face of silicon carbide from the substrate by gold intercalation, leading to a completely sp(2)-hybridized graphene layer with improved electronic properties.

引用

页数：6

共 38 条

[1] Electronic confinement and coherence in patterned epitaxial graphene [J].

Berger, Claire ;

Song, Zhimin ;

Li, Xuebin ;

Wu, Xiaosong ;

Brown, Nate ;

Naud, Cecile ;

Mayou, Didier ;

Li, Tianbo ;

Hass, Joanna ;

Marchenkov, Atexei N. ;

Conrad, Edward H. ;

First, Phillip N. ;

de Heer, Wait A. .

SCIENCE, 2006, 312 (5777) :1191-1196

[2] Symmetry breaking in few layer graphene films [J].

Bostwick, Aaron ;

Ohta, Taisuke ;

McChesney, Jessica L. ;

Emtsev, Konstantin V. ;

Seyller, Thomas ;

Horn, Karsten ;

Rotenberg, Eli .

NEW JOURNAL OF PHYSICS, 2007, 9

[3] Quasiparticle dynamics in graphene [J].

Bostwick, Aaron ;

Ohta, Taisuke ;

Seyller, Thomas ;

Horn, Karsten ;

Rotenberg, Eli .

NATURE PHYSICS, 2007, 3 (01) :36-40

[4] Alloy formation of supported gold nanoparticles at their transition from clusters to solids:: Does size matter? -: art. no. 016804 [J].

Boyen, HG ;

Ethirajan, A ;

Kästle, G ;

Weigl, F ;

Ziemann, P ;

Schmid, G ;

Garnier, MG ;

Büttner, M ;

Oelhafen, P .

PHYSICAL REVIEW LETTERS, 2005, 94 (01)

[5] Intercalation of copper underneath a monolayer of graphite on Ni(111) [J].

Dedkov, YS ;

Shikin, AM ;

Adamchuk, VK ;

Molodtsov, SL ;

Laubschat, C ;

Bauer, A ;

Kaindl, G .

PHYSICAL REVIEW B, 2001, 64 (03)

[6] Interaction, growth, and ordering of epitaxial graphene on SiC{0001} surfaces: A comparative photoelectron spectroscopy study [J].

Emtsev, K. V. ;

Speck, F. ;

Seyller, Th. ;

Ley, L. ;

Riley, J. D. .

PHYSICAL REVIEW B, 2008, 77 (15)

[7] Synthesis of a weakly bonded graphite monolayer on Ni(111) by intercalation of silver [J].

Farías, D ;

Shikin, AM ;

Rieder, KH ;

Dedkov, YS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (43) :8453-8458

[8] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[9] Atomic Hole Doping of Graphene [J].

Gierz, Isabella ;

Riedl, Christian ;

Starke, Ulrich ;

Ast, Christian R. ;

Kern, Klaus .

NANO LETTERS, 2008, 8 (12) :4603-4607

[10] Doping graphene with metal contacts [J].

Giovannetti, G. ;

Khomyakov, P. A. ;

Brocks, G. ;

Karpan, V. M. ;

van den Brink, J. ;

Kelly, P. J. .

PHYSICAL REVIEW LETTERS, 2008, 101 (02)

← 1 2 3 4 →