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Producing large-area single-crystalline graphene is key to realizing its full potential in advanced applications, including twistronics. Yet, controlling graphene growth kinetics to avoid grain boundaries or multilayer growth remains…

Graphene, consisting of an inert, thermally stable material with an atomically flat, dangling bond-free surface is by essence an ideal template layer for van der Waals heteroepitaxy of two-dimensional materials such as silicene. However,…

We introduce a kinetic model for the growth of epitaxial graphene on 6H-SiC. The model applies to vicinal surfaces composed of half-unit-cell height steps where experiment shows that step flow sublimation of SiC promotes the formation and…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Fan Ming , Andrew Zangwill

Silicon carbide (SiC) is an excellent substrate for growth and manipulation of large scale, high quality epitaxial graphene. On the carbon face (the ($\bar{1}\bar{1}\bar{1}$) or $(000\bar{1}$) face, depending on the polytype), the onset of…

Materials Science · Physics 2019-10-23 Jan Kloppenburg , Lydia Nemec , Björn Lange , Matthias Scheffler , Volker Blum

Cubic silicon carbide (3C-SiC) is an emerging material for high power and new generation devices, but the development of high quality 3C-SiC layer still represents a scientific and technological challenge especially when grown on a Si…

Applied Physics · Physics 2020-01-17 M. Zimbone , M. Zielinski , E. G. Barbagiovanni , C. Calabretta , F. La Via

The electronic properties of few-layer graphene grown on the carbon-face of silicon carbide (SiC) are found to be strongly dependent on the number of layers. The carrier mobility is larger in thicker graphene because substrate-related…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Wenjuan Zhu , Christos Dimitrakopoulos , Marcus Freitag , Phaedon Avouris

We have investigated epitaxial graphene films grown on SiC(0001) by annealing in an atmosphere of Ar instead of vacuum. Using AFM and LEEM we observe a significantly improved surface morphology and graphene domain size. Hall measurements on…

We report on a new method for graphene synthesis and assessment of the properties of the resulting large-area graphene layers. Graphene was produced by the high pressure - high temperature growth from the natural graphitic source by…

Materials Science · Physics 2008-05-03 F. Parvizi , D. Teweldebrhan , S. Ghosh , I. Calizo , A. A. Balandin , H. Zhu , R. Abbaschian

Graphene on silicon carbide (SiC) bears great potential for future graphene electronic applications because it is available on the wafer-scale and its properties can be custom-tailored by inserting various atoms into the graphene/SiC…

Materials Science · Physics 2018-11-07 T. A. de Jong , E. E. Krasovskii , C. Ott , R. M. Tromp , S. J. van der Molen , J. Jobst

In view of the appreciable semiconducting gap of 0.26 eV observed in recent experiments, epitaxial graphene on a SiC substrate seems a promising channel material for FETs. Indeed, it is two-dimensional - and therefore does not require…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Martina Cheli , Paolo Michetti , Giuseppe Iannaccone

A clean, flat and orientation-identified graphene on a substrate is in high demand for graphene electronics. In this study, the hetero-epitaxial graphene growth on Cu(111)/mica(001) by chemical vapor deposition is investigated to check the…

Materials Science · Physics 2015-10-08 J. L. Qi , K. Nagashio , T. Nishimura , A. Toriumi

The electronic band structure of as-grown and doped graphene grown on the carbon face of SiC is studied by high-resolution angle-resolved photoemission spectroscopy, where we observe both rotations between adjacent layers and AB-stacking.…

Materials Science · Physics 2011-06-30 David A. Siegel , Choongyu Hwang , Alexei V. Fedorov , Alessandra Lanzara

The electrical transport properties of epitaxial graphene layers are correlated with the SiC surface morphology. In this study we show by atomic force microscopy and Raman measurements that the surface morphology and the structure of the…

Angle-resolved photoemission and X-ray diffraction experiments show that multilayer epitaxial graphene grown on the SiC(000-1) surface is a new form of carbon that is composed of effectively isolated graphene sheets. The unique rotational…

We demonstrate a method for synthesizing large scale single layer graphene by thermal annealing of ruthenium single crystal containing carbon. Low energy electron diffraction indicates the graphene grows to as large as millimeter dimensions…

Materials Science · Physics 2007-09-19 Y. Pan , N. Jiang , J. T. Sun , D. X. Shi , S. X. Du , Feng Liu , H. -J. Gao

The fundamental properties of graphene are making it an attractive material for a wide variety of applications. Various techniques have been developed to produce graphene and recently we discovered the synthesis of large area graphene by…

Vertical and lateral heterogeneous structures of two-dimensional (2D) materials have paved the way for pioneering studies on the physics and applications of 2D materials. A hybridized hexagonal boron nitride (h-BN) and graphene lateral…

In order to make graphene technologically viable, the transfer of graphene films to substrates appropriate for specific applications is required. We demonstrate the dry transfer of epitaxial graphene (EG) from the C-face of 4H-SiC onto…

The adoption of graphene in electronics, optoelectronics and photonics is hindered by the difficulty in obtaining high quality material on technologically-relevant substrates, over wafer-scale sizes and with metal contamination levels…

We address the stability of the surface phases that occur on the C-side of 3C-SiC($\bar{1} \bar{1} \bar{1}$) at the onset of graphene formation. In this growth range, experimental reports reveal a coexistence of several surface phases. This…

Materials Science · Physics 2015-05-20 Lydia Nemec , Florian Lazarevic , Patrick Rinke , Matthias Scheffler , Volker Blum