Epitaxial graphene on silicon carbide: Introduction to structured graphene

Ruan, Ming; Hu, Yusheng; Guo, Zelei; Dong, Rui; Palmer, James; Hankinson, John; Berger, Claire; Heer, Walt A. de

doi:10.1557/mrs.2012.231

Cited by 63 publications

(64 citation statements)

References 70 publications

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“…Examples of graphene synthesis include: (1) CVD of graphene, by Sony Corporation (in 2012), produced a 100-m-long by 210-mm-width graphene [8]; (2) graphene grown epitaxially on silicon carbide (SiC) which shows potential for wafer-scale production commercially [9], large-scale patterning [10] and integration with the current silicon technology in electronic industries [11]; (3) recent fabrication of graphene from commercial polymer films using a CO 2 infrared laser, offering rapid production of graphene, by Lin et al [12].…”

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confidence: 99%

Trends of elemental adsorption on graphene

2016

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Adding impurities or doping through adsorption is an effective way to tailor the properties of graphene-based materials. The capability of making predictions with regard to the trends of elemental adsorption on graphene is crucial to a better understanding of the more complex adsorption cases. It also provides useful guidelines for fabricating 2D graphene materials with novel properties. In this review, we show trends of elemental adsorption on graphene with elements of the periodic table, based on previous studies and supplemented with our recent calculations. We also discuss the effects of atomic ratios on some properties of this element-adsorbed graphene system. Trends of properties studied include binding energy, most stable site, adatom height, migration energy, Fermi energy shift, graphene distortion, magnetization, charge transfer, and electronic energy band gap at Fermi energy. Certainly, there is ample scope to investigate the electronic structures of elemental adsorption on graphene based on period and group of the periodic table, and atomic ratio.

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Trends of elemental adsorption on graphene

2016

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“…Whilst the study of Si adsorbed on graphene can loosely be related to the study of graphene growth on SiC [35]. Graphene grown on SiC shows promise for wafer-scale production commercially [36], large-scale patterning [37] and integration with current silicon technology in the electronics industry [38].…”

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confidence: 99%

Geometrical and orientational investigations on the electronic structure of graphene with adsorbed aluminium or silicon

et al. 2016

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orientational investigations on the electronic structure of graphene with adsorbed aluminium or silicon, (2015), doi: 10.1016/j.matdes.2015.09.111 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. In this contribution, we deployed DFT periodic slab calculations to investigate effect of orientational dependence of Al-and Si-adsorbed graphene systems. We utilized 2 × 2 and 2 × 3 graphene supercells with 1:8 (Al, Si : C) atomic ratios. We observed that the relative orientation of adsorbent atoms exerts profound influence on electronic structures in conjunction with a matching effect caused by the distinct adsorption sites (i.e. bridge, hollow or top). The orientation effects of Si-adsorbed graphene on electronic structure are greater than their Al analogous structures. We anticipate our finding herein, of low adatom concentration on graphene, to prompt re-examination of metal-graphene systems to account for the previously unnoticed -but significant -orientational effect that adds an additional degree of freedom to elemental adsorption on graphene.

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“…As a consequence, a large number of graphene-related systems are now studied: ultrathin multilayer materials produced by graphite exfoliation are already of significant commercial interest as composite fillers; few-layer materials with either ABA stacking or rotational faulting giving rise to electronic decoupling of the individual layers [15]; other chemically modified graphenes (the simplest one being the graphene oxide) [16], or different carbon materials realized using graphene or graphene oxide as atomically-thin precursors, can be used to build a large number of three-dimensional (3D) architectures [17,18]. Together with monolayer graphene, these systems constitute a family of ultrathin, two-dimensional carbon materials, most of which are new, and with established or potential scientific and technological interest.…”

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Graphene-Like Layers from Unconventional Carbon Sources: New Perspectives on Hybrid Materials and π-system Synergisms

Capua

Gargiulo

AlfГЁ

2016

Eurasian Chem. Tech. J.

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We developed a new approach for producing graphene-like (GL) materials through a two-steps oxidation/reduction method starting from a nanostructured (high surface) carbon black, a versatile carbonaceous material prone to be structurally and chemically modified in quite mild wet conditions. Atomic Force Microscopy and zetapotential measurements allowed to model the assembling mechanisms and the role of hydrophobic interactions, demonstrating the possibility to easily tune the surface morphology. GL materials have been then employed in a large variety of hybrid materials for innovative applications, and characterized by chemical, electrical, structural and spectroscopic techniques. With Metal-Organic Frameworks, GL produced conducting composites with electrical conductivity tunable by changing the concentration of the parent materials; Eumelanin/GL and TiO 2 -nanoparticles/GL were also studied for photocatalysis and biosensors applications.

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Epitaxial graphene on silicon carbide: Introduction to structured graphene

Abstract: Abstract

Cited by 63 publications

References 70 publications

Trends of elemental adsorption on graphene

Trends of elemental adsorption on graphene

Geometrical and orientational investigations on the electronic structure of graphene with adsorbed aluminium or silicon

Graphene-Like Layers from Unconventional Carbon Sources: New Perspectives on Hybrid Materials and π-system Synergisms

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