Two-dimensional atomic crystals

Новоселов, К. С.; Jiang, Ding‐Sheng; Schedin, F.; Booth, Tim; Khotkevich, V. V.; Морозов, С. В.; Geǐm, A. K.

doi:10.1073/pnas.0502848102

Cited by 10,989 publications

(8,367 citation statements)

References 18 publications

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“…various inorganic groups, [23][24][25][81][82][83][84][85][86][87][88][89][90] organic or organometallic molecules, [37,[91][92][93][94][95][96] DNAs, [97][98][99][100][101] proteins, [102] peptides, [30,31,103,104] nanoparticles, [105,106,107] and 2D heterostructure. [51,52,61,108] These molecules are able to respond chemically or physically to their nearby environment, whose responses could then be transduced into an appreciable change in the conductivity of the carbon-based honeycomb scaffold. The introduction of such chemical moieties on the graphene surface or edge is often referred to as graphene functionalization.…”

Section: Meeting the Challenges In Chemical Functionalization Of Grapmentioning

confidence: 99%

Sensing at the Surface of Graphene Field‐Effect Transistors

et al. 2016

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Abstract. 10Recent research trends now offer new opportunities for developing the next generations of label-free biochemical sensors using graphene and other two-dimensional materials. While the physics of graphene transistors operated in electrolyte is well grounded, important chemical challenges still remain to be addressed, namely the impact of the chemical functionalizations of graphene on the key electrical parameters and the sensing performances. In fact, graphene -at least ideal graphene -is highly chemically inert. The 15 functionalizations and chemical alterations of the graphene surface -both covalently and non-covalently -are crucial steps that define the sensitivity of graphene. The presence, reactivity, adsorption of gas and ions, proteins, DNA, cells and tissues on graphene have been successfully monitored with graphene. This review aims to unify most of the work done so far on biochemical sensing at the surface of a (chemically functionalized) graphene field-effect transistor and the challenges that lie ahead. We are convinced that graphene biochemical sensors 20 hold great promises to meet the ever-increasing demand for sensitivity, especially looking at the recent progresses suggesting that the obstacle of Debye screening can be overcome.2

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Section: Meeting the Challenges In Chemical Functionalization Of Grapmentioning

confidence: 99%

Sensing at the Surface of Graphene Field‐Effect Transistors

et al. 2016

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“…The commonly applied techniques include mechanical cleavage, solution-based exfoliation, Chemical Vapor Deposition (CVD), and hydrothermal synthesis. [7,[17][18][19][20][21][22] These strategies for TMD nanosheet production allow for deep investigation of their layer-dependent properties, and investigations into their future industrial application.…”

Section: Representation Of 1t-mos 2 (Top) and 2h-mos 2 (Bottom)mentioning

confidence: 99%

Functionalization of Two‐Dimensional Transition‐Metal Dichalcogenides

2016

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Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) are a fascinating class of nanomaterials that have the potential for application in catalysis, electronics, photonics, energy storage, and sensing. TMDs are rather inert, and thus pose problems for chemical derivatization. However, to further modify the properties of TMDs and fully harness their capabilities, routes towards their chemical functionalization must be identified. In this research news article we critically review recent efforts towards the chemical (bond-forming) functionalization of 2D TMDs.We highlight recent successes and also areas where further detailed analyses and experimentation are required. As detailed herein, this burgeoning field is very much in its infancy but has already provided several important breakthroughs. Graphical Abstract3

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“…Due to the internal exceptionally high crystal quality [8,9] and massless Dirac fermions [10], monolayer graphene exhibits anomalous half integer quantum Hall effect [11], remarkable optical properties [12,13], ultra-high intrinsic strength [14], superior thermal conductivity [15] and extremely high charge carrier mobility [6,16,17]. It is referred to as a zero-gap semiconductor, showing an exceptionally high concentration of charge carriers and ballistic transport because of the unique Dirac cone band structure near the Fermi level.…”

Section: Introductionmentioning

confidence: 99%

Structure of graphene and its disorders: a review

Gao

Lee

et al. 2018

Science and Technology of Advanced Materials

533

187

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Monolayer graphene exhibits extraordinary properties owing to the unique, regular arrangement of atoms in it. However, graphene is usually modified for specific applications, which introduces disorder. This article presents details of graphene structure, including sp2 hybridization, critical parameters of the unit cell, formation of σ and π bonds, electronic band structure, edge orientations, and the number and stacking order of graphene layers. We also discuss topics related to the creation and configuration of disorders in graphene, such as corrugations, topological defects, vacancies, adatoms and sp3-defects. The effects of these disorders on the electrical, thermal, chemical and mechanical properties of graphene are analyzed subsequently. Finally, we review previous work on the modulation of structural defects in graphene for specific applications.

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Two-dimensional atomic crystals

Cited by 10,989 publications

References 18 publications

Sensing at the Surface of Graphene Field‐Effect Transistors

Sensing at the Surface of Graphene Field‐Effect Transistors

Functionalization of Two‐Dimensional Transition‐Metal Dichalcogenides

Structure of graphene and its disorders: a review

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