Thermal Transport in Suspended and Supported Monolayer Graphene Grown by Chemical Vapor Deposition

Cai, Weiwei; Moore, Arden L.; Zhu, Yanwu; Li, Xuesong; Chen, Shanshan; Shi, Li; Ruoff, Rodney S.

doi:10.1021/nl9041966

Cited by 1,147 publications

(1,115 citation statements)

References 34 publications

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“…2500 W · m − 1 · K − 1 ). [ 9 ] These results indicate that the crystallinity of the 2D sheets affects signifi cantly the thermal properties. Therefore, if one is to exploit the outstanding thermal properties of graphene, it is important to synthesize extremely high crystalline graphene so that the fabrication of heat dissipaters and polymer composites with high thermal conduction could be possible.…”

Section: Structure and Physico-chemical Properties Of Graphenementioning

confidence: 85%

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

et al. 2011

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Graphene constitutes a two dimensional sp2 hybridized carbon material with outstanding electrical and mechanical properties. To date, novel methods for producing large quantities of graphene and its derivatives (doped or functionalized graphenes, nanoribbons and nanoplatelets) are emerging, and research dedicated to the fabrication of polymer nanocomposites using graphenes has started. In this Research News, we summarize the synthesis and properties of graphene and its derivatives, and provide an overview of the latest research dedicated to the fabrication of polymer composites for different applications, including mechanical, electrical, optical and thermal. Some of the recently fabricated composites exhibit outstanding properties, however, it is vital to understand the chemistry and physics of the interphases established between the polymer and the graphene surfaces. The challenges in the fabrication of super robust and highly conducting composites using graphenes are also discussed. It is believed that graphene‐based polymer composites will result in commercial products if their interphases and reactivity are carefully controlled.

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Section: Structure and Physico-chemical Properties Of Graphenementioning

confidence: 85%

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

et al. 2011

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“…Due to the scattering effect induced by GBs, the thermal conductivity of CVD-grown polycrystalline graphene is generally lower than that of exfoliated graphene [275]. In non-equilibrium MD simulations, Bagri et al [276] found a jump in temperature at tilt GBs when a constant heat flux was applied, and they calculated the boundary conductance by relating the jump in temperature to the heat flux.…”

Section: Disorders In Graphene Structurementioning

confidence: 99%

Structure of graphene and its disorders: a review

Gao

Lee

et al. 2018

Science and Technology of Advanced Materials

531

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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“…[52][53][54] It is well known that the properties of graphene may be strongly influenced by the supporting substrate; hence studies on free-standing graphene are of enormous interest. [55][56][57] The graphene TEM grid was electrochemically tested with two well-known redox couples;…”

Section: Wetting and Electrochemistry Of Supported And Suspended Grapmentioning

confidence: 99%

Versatile Polymer-Free Graphene Transfer Method and Applications

Zhang

Güell

Kirkman

et al. 2016

ACS Appl. Mater. Interfaces

107

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A new method for transferring chemical vapor deposition (CVD)-grown monolayer graphene, to a variety of substrates is described. The method makes use of an organic/aqueous biphasic configuration, avoiding the use of any polymeric materials that can cause severe contamination problems. The graphene-coated copper foil sample (on which graphene was grown) sits at the interface between hexane and an aqueous etching solution of ammonium persulfate to remove the copper. With the aid of an Si/SiO2 substrate, the graphene layer is then transferred to a second hexane/water interface, to remove etching products. From this new location, CVD graphene is readily transferred to arbitrary substrates, including three dimensional architectures as represented by atomic force microscopy (AFM) tips and transmission electron microscopy (TEM) grids. Graphene produces a conformal layer on AFM tips, to the very end, allowing the easy production of tips for conductive AFM imaging. Graphene transferred to copper TEM grids provides large area, highly electrontransparent substrates for TEM imaging. These substrates can also be used as working electrodes for electrochemistry and high resolution wetting studies. By using scanning electrochemical cell microscopy, it is possible to make electrochemical and wetting measurements at either a free-standing graphene film or a copper-supported graphene area, and readily determine any differences in behavior.3

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Thermal Transport in Suspended and Supported Monolayer Graphene Grown by Chemical Vapor Deposition

Cited by 1,147 publications

References 34 publications

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

Interphases in Graphene Polymer‐based Nanocomposites: Achievements and Challenges

Structure of graphene and its disorders: a review

Versatile Polymer-Free Graphene Transfer Method and Applications

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