Controlling the number of layers in graphene using the growth pressure

Cho, Joon Hyong; Na, Seung Ryul; Park, Saungeun; Akinwande, Deji; Liechti, Kenneth M.; Cullinan, Michael

doi:10.1088/1361-6528/ab0847

Cited by 20 publications

(13 citation statements)

References 37 publications

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“…TEM or Raman spectroscopy and AFM allow the determination of the number of layers and lateral dimensions. An accurate and real view of sheet quality, the number of defects, and delamination achieved can be obtained from AFM, which allows the determination of lateral dimensions by analyzing the shape and height of the GR/GO flakes [15,36,[41][42][43].…”

Section: Graphene-based Materialsmentioning

confidence: 99%

Graphenic Materials for Biomedical Applications

2019

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Graphene-based nanomaterials have been intensively studied for their properties, modifications, and application potential. Biomedical applications are one of the main directions of research in this field. This review summarizes the research results which were obtained in the last two years (2017-2019), especially those related to drug/gene/protein delivery systems and materials with antimicrobial properties. Due to the large number of studies in the area of carbon nanomaterials, attention here is focused only on 2D structures, i.e. graphene, graphene oxide, and reduced graphene oxide.

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Section: Graphene-based Materialsmentioning

confidence: 99%

Graphenic Materials for Biomedical Applications

2019

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“…Nonetheless, the issue of depositing few layers graphene in APCVD can be improved by highly diluting carbon in hydrogen [45,47,48] or increasing the growth temperature above the melting point of the growth substrate [49,50]. While the surface diffusion of reaction limits the graphene growth to a single layer upon coverage of the copper surface, it has been shown that more layers can be grown on copper [51,52]. Cho et al managed to grow bilayer and multilayer graphene by controlling the growth pressure during the CVD process [51].…”

Section: Role Of Total Reaction Pressurementioning

confidence: 99%

“…While the surface diffusion of reaction limits the graphene growth to a single layer upon coverage of the copper surface, it has been shown that more layers can be grown on copper [51,52]. Cho et al managed to grow bilayer and multilayer graphene by controlling the growth pressure during the CVD process [51]. Studying several growth pressures showed that single layer graphene growth is dominant at low pressures.…”

Section: Role Of Total Reaction Pressurementioning

confidence: 99%

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Chemical Vapour Deposition of Graphene—Synthesis, Characterisation, and Applications: A Review

et al. 2020

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Graphene as the 2D material with extraordinary properties has attracted the interest of research communities to master the synthesis of this remarkable material at a large scale without sacrificing the quality. Although Top-Down and Bottom-Up approaches produce graphene of different quality, chemical vapour deposition (CVD) stands as the most promising technique. This review details the leading CVD methods for graphene growth, including hot-wall, cold-wall and plasma-enhanced CVD. The role of process conditions and growth substrates on the nucleation and growth of graphene film are thoroughly discussed. The essential characterisation techniques in the study of CVD-grown graphene are reported, highlighting the characteristics of a sample which can be extracted from those techniques. This review also offers a brief overview of the applications to which CVD-grown graphene is well-suited, drawing particular attention to its potential in the sectors of energy and electronic devices.

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“…In certain applications, bilayer [134,135], and even multilayer graphene may be desired [136]. Multilayer graphene has the benefit of being more durable during processing and can be manufactured in much the same way as single layer graphene, but with slight modifications to the process [137].…”

Section: Manufacturingmentioning

confidence: 99%

Towards Repeatable, Scalable Graphene Integrated Micro-Nano Electromechanical Systems (MEMS/NEMS)

et al. 2021

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The demand for graphene-based devices is rapidly growing but there are significant challenges for developing scalable and repeatable processes for the manufacturing of graphene devices. Basic research on understanding and controlling growth mechanisms have recently enabled various mass production approaches over the past decade. However, the integration of graphene with Micro-Nano Electromechanical Systems (MEMS/NEMS) has been especially challenging due to performance sensitivities of these systems to the production process. Therefore, ability to produce graphene-based devices on a large scale with high repeatability is still a major barrier to the commercialization of graphene. In this review article, we discuss the merits of integrating graphene into Micro-Nano Electromechanical Systems, current approaches for the mass production of graphene integrated devices, and propose solutions to overcome current manufacturing limits for the scalable and repeatable production of integrated graphene-based devices.

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Controlling the number of layers in graphene using the growth pressure

Cited by 20 publications

References 37 publications

Graphenic Materials for Biomedical Applications

Graphenic Materials for Biomedical Applications

Chemical Vapour Deposition of Graphene—Synthesis, Characterisation, and Applications: A Review

Towards Repeatable, Scalable Graphene Integrated Micro-Nano Electromechanical Systems (MEMS/NEMS)

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