Synthesis, Properties, and Applications of Graphene

Trivedi, Shivam; Lobo, Kenneth; Matte, H. S. S. Ramakrishna

doi:10.1016/b978-0-08-102577-2.00003-8

Cited by 15 publications

(11 citation statements)

References 290 publications

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“…Further, to enhance the properties, the Ni 4 Fe/rGO composites were synthesized Figure c shows the incorporation of rGO in LDH/rGO composites by showing the characteristics peaks of LDH and rGO.…”

Section: Discussionmentioning

confidence: 99%

“…Further, to enhance the properties, the Ni 4 Fe/rGO composites were synthesized. 65 Figure 4c shows the incorporation of rGO in LDH/rGO composites by showing the characteristics peaks of LDH and rGO. It is observed in the composites that there is softening and broadening of the Raman G band of rGO, suggesting the charge transfer from the LDH layer to the rGO sheets as reported previously.…”

Section: ■ Discussionmentioning

confidence: 99%

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Role of Transition Metals in Layered Double Hydroxides for Differentiating the Oxygen Evolution and Nonenzymatic Glucose Sensing

Moolayadukkam

Thomas

Sahoo

et al. 2020

ACS Appl. Mater. Interfaces

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Layered double hydroxides (LDH) belong to the class of two-dimensional materials having a wide variety of applications ranging from energy storage to catalysis. Often, these materials when used for nonenzymatic electrochemical glucose sensing tend to be interfering with oxygen evolution reaction (OER), resulting in overestimation of the glucose. Herein, to address this, NiFe-based LDH were selected because of their ability to vary the metal ratios. The synthesized LDH have been characterized using various spectroscopic and microscopic techniques. Among the LDH synthesized, Ni4Fe-LDH have been able to differentiate the glucose oxidation potential and the onset potential of OER with minimum interference. The Ni4Fe-LDH sensor shows a sensitivity of 20.43 μA mM–1 cm–2 in the linear range of 0–4 mM concentrations. To further enhance the sensitivity, composites of reduced graphene oxide (rGO) have been synthesized in situ, and the Ni4Fe/rGO5 composites have shown an increased sensitivity of 176.8 μA mM–1 cm–2 attributed to the charge-transfer interactions. To understand the experimental observations, detailed computational studies have been carried out to study the effect of the electronic structure on the metal ratios of the LDH and its role in differentiating glucose sensing and the oxygen evolution reaction. Along with this, theoretical calculations are also carried out on LDH–graphene composites to study the charge-transfer interactions.

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Section: Discussionmentioning

confidence: 99%

Section: ■ Discussionmentioning

confidence: 99%

Role of Transition Metals in Layered Double Hydroxides for Differentiating the Oxygen Evolution and Nonenzymatic Glucose Sensing

Moolayadukkam

Thomas

Sahoo

et al. 2020

ACS Appl. Mater. Interfaces

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“…Next, as for the low 𝐼 𝑑𝑠,𝑠𝑎𝑡 , it is essentially caused by the carrier mobility degradation in the graphene layer. The mobility is degraded due to the contaminated surface and defects introduced during the GFET fabrication process [98]. Therefore, an effort was made by Deokar et al to address this issue [99].…”

Section: Issues Of Gfet-based Rf Componentsmentioning

confidence: 99%

Assessing the Figures of Merit of Graphene-Based Radio Frequency Electronics: A Review of GFET in RF Technology

Norhakim¹,

Hawari²,

Burhanudin³

2022

IEEE Access

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Graphene has been extensively investigated in the context of electronic components due to its attractive properties, such as high carrier mobility and saturation velocity. In the past decade, the graphene field-effect transistor (GFET) has been considered one of the potential devices to be used in future radio frequency (RF) applications and can help usher in the Internet of Things and the 5G communication network. This review presents recent developments of GFETs in RF applications with a focus on components such as amplifiers, frequency multipliers, phase shifters, mixers, and oscillators. Initially, the figures of merit (FoMs) for the GFET are briefly described to understand how they affect these RF components. Subsequently, the FoMs of GFET-based RF components are compared with other non-GFET-based RF components. It is found that, due to its zero-band gap and ambipolar characteristics, GFETs are more suitable for use in frequency multiplier and phase shifter applications, outperforming non-GFET-based RF components. Finally, future research on GFETs themselves as well as GFET-based RF components is recommended. This review provides valuable insights into such components that could give rise to innovative applications in industry.

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“…The determination of the number of layers is the most common application of the AFM. The procedure typically involves scanning the edges of graphene sheets at the places where the stacked layers form steps [ 199 ]. In most cases, the thickness of graphene flakes on substrates is measured using the AFM in tapping mode.…”

Section: Characterisation Of Cvd Graphenementioning

confidence: 99%

“…The list of graphene application fields includes energy conversion and storage (solar cells, fuel cells batteries and super-capacitors), biosensors, antimicrobial material, field-effect transistors, sensing, drug delivery, tissue engineering, sorbents and membranes, etc.) [ 199 , 200 ]. The outstanding carrier mobility makes graphene grown by CVD an ideally suited material for several specific applications in the electronics industry, including touch panels, logic circuits, bioinspired devices, sensing materials for tactile sensors and semiconducting channels for field-effect transistors [ 22 , 24 , 81 ].…”

Section: Applications Of Cvd Graphenementioning

confidence: 99%

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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Synthesis, Properties, and Applications of Graphene

Cited by 15 publications

References 290 publications

Role of Transition Metals in Layered Double Hydroxides for Differentiating the Oxygen Evolution and Nonenzymatic Glucose Sensing

Role of Transition Metals in Layered Double Hydroxides for Differentiating the Oxygen Evolution and Nonenzymatic Glucose Sensing

Assessing the Figures of Merit of Graphene-Based Radio Frequency Electronics: A Review of GFET in RF Technology

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

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