Synthesis of Graphene Films on Copper Substrates by CVD of Different Precursors

Giorgi, R.; Dikonimos, Theodoros; Falconieri, M.; Gagliardi, Serena; Lisi, N.; Morales, P.; Pilloni, L.; Salernitano, E.

doi:10.1007/978-3-642-20644-3_13

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…For a diversity of industrial uses, the CVD technique of graphene production is dependable, practical, and cost-effective. Meanwhile, current research has focused on developing a more sustainable method for producing graphene in large quantities and of excellent quality using CVD at temperatures below 100 °C [ 94 , 95 , 96 ]. Portraying graphene as a suitable option for future devices (flexible electronic) has certain drawbacks that must be addressed.…”

Section: Techniques For the Production Of Graphenementioning

confidence: 99%

Graphene and Its Derivatives: Synthesis and Application in the Electrochemical Detection of Analytes in Sweat

et al. 2022

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Wearable sensors and invasive devices have been studied extensively in recent years as the demand for real-time human healthcare applications and seamless human–machine interaction has risen exponentially. An explosion in sensor research throughout the globe has been ignited by the unique features such as thermal, electrical, and mechanical properties of graphene. This includes wearable sensors and implants, which can detect a wide range of data, including body temperature, pulse oxygenation, blood pressure, glucose, and the other analytes present in sweat. Graphene-based sensors for real-time human health monitoring are also being developed. This review is a comprehensive discussion about the properties of graphene, routes to its synthesis, derivatives of graphene, etc. Moreover, the basic features of a biosensor along with the chemistry of sweat are also discussed in detail. The review mainly focusses on the graphene and its derivative-based wearable sensors for the detection of analytes in sweat. Graphene-based sensors for health monitoring will be examined and explained in this study as an overview of the most current innovations in sensor designs, sensing processes, technological advancements, sensor system components, and potential hurdles. The future holds great opportunities for the development of efficient and advanced graphene-based sensors for the detection of analytes in sweat.

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Section: Techniques For the Production Of Graphenementioning

confidence: 99%

Graphene and Its Derivatives: Synthesis and Application in the Electrochemical Detection of Analytes in Sweat

et al. 2022

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“…CVD growth of graphene on copper is attractive because of the reduced solubility of carbon on copper and the consequent surface limited growth. − ,− , Unlike other substrates, Cu allows for the growth of graphene through the adsorption process, where the attractive interaction between C adatoms on the flat Cu surface is believed to promote island formation and fast growth. , Previous works demonstrated that CVD growth, even on polycrystalline Cu films, results in good quality and large size single layer graphene. ,− Here, during the CVD growth, carbon atoms follow the surface structure and bind more readily at the Cu grain boundary, which promotes grain boundary defects. ,, Advances such as electropolishing of the substrate, the two-step CVD process, and the pulsed CVD method serve to eliminate the Cu grain boundaries. − Since the mechanical strength of CVD graphene membrane − depends on the reduction of defects, these methods help to realize higher quality graphene . Similarly, chemical pretreatment and/or preannealing of the foil can be important growth parameters.…”

Section: Introductionmentioning

confidence: 99%

“…1 CVD growth of graphene on copper is attractive because of the reduced solubility of carbon on copper and the consequent surface limited growth. [7][8][9][10][11][13][14][15]22 Unlike other substrates, Cu allows for the growth of graphene through the adsorption process, where the attractive interaction between C adatoms on the flat Cu surface is believed to promote island formation and fast growth. 22,23 Previous works demonstrated that CVD growth, even on polycrystalline Cu films, results in good quality and large size single layer graphene.…”

Section: ■ Introductionmentioning

confidence: 99%

Mesoscale Scanning Electron and Tunneling Microscopy Study of the Surface Morphology of Thermally Annealed Copper Foils for Graphene Growth

Sarajlic

Mani

2013

Chem. Mater.

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The evolution of the surface morphology of thermally annealed copper foils utilized for graphene growth by Chemical Vapor Deposition (CVD) has been studied by Scanning Tunneling Microscopy, Scanning Electron Microscopy, and optical microscopy to determine the effect of pretreatment and preannealing steps that aimed to increase grain size and reduce surface roughness for subsequent graphene growth. The results of the study show that (a) Fe(NO 3 ) 3 etch pretreatment leaves residue and etch quarries on the Cu surface even after thermal annealing, (b) certain preannealing processes yield a crust layer on the foil that can peel off, (c) graphene film can preserve an imprint of the Cu film grain structure after being transferred onto SiO 2 substrate, and (d) graphene/Cu surface height variations remain much larger than the diameter of the carbon atom over micrometer length scales. Nevertheless, good quality graphene can be grown on the rough Cu surface, and a layer of graphene on top of the copper reduces its apparent surface roughness.

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“…Among many studies on the synthesis of graphene, thermal decomposition method, such as pyrolysis of SiC 1) wafer and films 2,3) and chemical vapor deposition (CVD) are considerably suitable for electronic applications owing to the possibility of largescale film growth. CVD requires catalytic metal films such as Ni 4) and Cu, 5,6) and post-transfer techniques are required to support the graphene on a substrate.…”

Section: Introductionmentioning

confidence: 99%

Direct Growth Properties of Graphene Layers on Sapphire Substrate by Alcohol-Chemical Vapor Deposition

Nakamura

Miyasaka

Temmyo

2012

Jpn. J. Appl. Phys.

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Few nanometers thick graphene layers were directly grown on a-plane (112̄0) sapphire substrates by alcohol-chemical vapor deposition (alcohol-CVD) using ethanol as a carbon source and without any catalytic metal on the substrate surface. The growth relationship between the graphene layer and substrate was analyzed using a transmission electron microscope (TEM). The growth rate of graphene layers with different growth temperatures revealed that the Al atom act as a catalyst for synthesizing a graphitic material during the decomposition of ethanol. An optical transmittance and a sheet resistance of the graphene sheet directly grown on sapphire substrate were observed. SiO2/Si and n-6H-SiC substrates were also examined for graphene direct growth to discuss the catalytic behavior of Si atoms compared with Al atoms.

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Synthesis of Graphene Films on Copper Substrates by CVD of Different Precursors

Cited by 4 publications

References 14 publications

Graphene and Its Derivatives: Synthesis and Application in the Electrochemical Detection of Analytes in Sweat

Graphene and Its Derivatives: Synthesis and Application in the Electrochemical Detection of Analytes in Sweat

Mesoscale Scanning Electron and Tunneling Microscopy Study of the Surface Morphology of Thermally Annealed Copper Foils for Graphene Growth

Direct Growth Properties of Graphene Layers on Sapphire Substrate by Alcohol-Chemical Vapor Deposition

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