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The development of wafer-scale continuous single-crystal graphene layers is key in view of its prospective applications. To this end, here we pave the way for a graphene growth model in the framework of the Langmuir adsorption theory and…

Materials Science · Physics 2013-05-14 HoKwon Kim , Eduardo Saiz , Manish Chhowalla , Cecilia Mattevi

Two-dimensional graphene exhibits many fascinating properties such as ballistic electronic conduction and quantum Hall effect at room temperature.1-4 Graphene doped electrochemically or through charge-transfer with electron-donor and…

Steeping interest on graphene research in basic sciences and applications emphasizes the need for an economical means of synthesizing it. We report a method for the synthesis of graphene on commercially available stainless steel foils using…

Mesoscale and Nanoscale Physics · Physics 2011-09-22 Robin John , A Ashokreddy , C Vijayan , T Pradeep

We demonstrate the growth of graphene nanocrystals by molecular beam methods that employ a solid carbon source, and that can be used on a diverse class of large area dielectric substrates. Characterization by Raman and Near Edge X-ray…

Applying time-dependent photoemission we unravel the graphene growth process on a metallic surface by chemical vapor deposition (CVD). Graphene CVD growth is in stark contrast to the standard growth process of two--dimensional films because…

Materials Science · Physics 2015-05-13 Alexander Grüneis , Kurt Kummer , Denis V. Vyalikh

We have investigated the effect of nitrogen (N2) as a carrier gas on the growth of vertical graphene nanosheets (VGN) by plasma enhanced chemical vapor deposition (PECVD). It is demonstrated that addition of nitrogen gas with a hydrocarbon…

Applied Physics · Physics 2022-06-24 Subrata Ghosh , S. R. Polaki , Nanda Gopala Krishna , M. Kamruddin

Techniques for mass-production of large area graphene using an industrial scale thin film deposition tool could be the key to the practical realization of a wide range of technological applications of this material. Here, we demonstrate the…

Materials Science · Physics 2013-02-20 Genhua Pan , Mark Heath , David Horsell , M. Lesley Wears

Growth of carbon nanotubes (CNTs) was performed by atmospheric pressure chemical vapour deposition (APCVD) of propane on Si(111) with a pre-treated Ni overlayer acting as a catalyst. Prior to the growth of CNTs, a thin film of Ni was…

Materials Science · Physics 2019-06-04 J Sengupta , SK Panda , C Jacob

All carbon electronics based on graphene has been an elusive goal. For more than a decade, the inability to produce significant band-gaps in this material has prevented the development of semiconducting graphene. While chemical…

The practical difficulties to use graphene in microelectronics and optoelectronics is that the available methods to grow graphene are not easily integrated in the mainstream technologies. A growth method that could overcome at least some of…

An operando investigation of graphene growth on (100) grains of polycrystalline nickel (Ni) surfaces was performed by means of variable-temperature scanning tunneling microscopy complemented by density functional theory simulations. A clear…

Hexagonal boron nitride encapsulation is the method of choice for protecting graphene from environmental doping and impurity scattering. It was previously demonstrated that metal-organic vapor phase epitaxy (MOVPE) grows epitaxially…

Graphene has recently attracted a great deal of interest in both academia and industry because of its unique electronic and optical properties [1,2], as well as its chemical, thermal, and mechanical properties. The superb characteristics of…

Materials Science · Physics 2010-06-29 Mingsheng Xu , Daisuke Fujita , Keisuke Sagisaka , Eiichiro Watanabe , Nobutaka Hanagata

In most envisioned applications, full utilization of a graphene-carbon nanotube (CNT) construct requires maintaining the integrity of the graphene layer during the CNT growth step. In this work, we exhibit an approach towards controlled CNT…

Materials Science · Physics 2013-08-13 Kitu Kumar , Youn-Su Kim , Xin Li , Junjun Ding , Frank T. Fisher , Eui-Hyeok Yang

Plasma functionalization of graphene is one of the facile ways to tune its doping level without the need for wet chemicals making graphene photoluminescent. Microscopic corrugations in the two-dimensional structure of bilayer CVD graphene…

Graphene, a hexagonal sheet of $sp^2$-bonded carbon atoms, has extraordinary properties which hold immense promise for future nanoelectronic applications. Unfortunately, the popular preparation methods of micromechanical cleavage and…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Andrew Zangwill , Dimitri D. Vvedensky

The doping of graphene to tune its electronic structure is essential for its further use in carbon based electronics. Adapting strategies from classical silicon based semiconductor technology, we use the incorporation of heteroatoms in the…

The most popular way to produce graphene nowadays is chemical vapor deposition, where, surprisingly, H$_2$ gas is routinely supplied even though it is a byproduct itself. In this study, by identifying dominant growing pathways via…

Materials Science · Physics 2017-11-28 Pai Li , Zhenyu Li , Jinlong Yang

Multilayer graphene (MLG) films were grown by chemical vapour deposition (CVD) on molybdenum carbide ($MoC_{x}$) substrates. We fabricated the catalytic $MoC_{x}$ films by plasma enhanced atomic layer deposition (PEALD). The mechanism of…

Applied Physics · Physics 2020-01-01 Eldad Grady , Chenhui Li , Oded Raz , W. M. M. Kessels , Ageeth A. Bol

This review on graphene, a one atom thick, two-dimensional sheet of carbon atoms, starts with a general description of the graphene electronic structure as well as a basic experimental toolkit for identifying and handling this material.…

Materials Science · Physics 2010-11-22 Caterina Soldano , Ather Mahmood , Erik Dujardin