Discontinuity and misorientation of graphene grown on nickel foil: Effect of the substrate crystallographic orientation

Kozlova, Jekaterina; Niilisk, Ahti; Alles, Harry; Sammelselg, Väinö

doi:10.1016/j.carbon.2015.06.023

Cited by 32 publications

(18 citation statements)

References 69 publications

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“…This will inadvertently affect the quality of graphene during synthesis. A similar observation was made for the Ni substrate, where the facet most similar to the Ni (111) orientation is homogeneously covered with fewer graphene layers compared to other facets, which is due to the lower binding energy on the Ni (111) crystal orientation and smaller lattice mismatch [40]. Table 1 summarizes the calculated lattice mismatch values for Cu, Ni and several other metals.…”

Section: Crystallinity and Morphology Of The Substrates Crystallinitysupporting

confidence: 64%

A critical review on the contributions of chemical and physical factors toward the nucleation and growth of large-area graphene

et al. 2018

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Since the first isolation of graphene over a decade ago, research into graphene has exponentially increased due to its excellent electrical, optical, mechanical and chemical properties. Graphene has been shown to enhance the performance of various electronic devices. In addition, graphene can be simply produced through chemical vapor deposition (CVD). Although the synthesis of graphene has been widely researched, especially for CVD growth method, the lack of understanding on various synthetic parameters still limits the fabrication of large-area and defect-free graphene films. This report critically reviews various parameters affecting the quality of CVD-grown graphene to understand the relationship between these parameters and the choice of metal substrates and to provide a point of reference for future studies of large-area, CVD-grown graphene.

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Section: Crystallinity and Morphology Of The Substrates Crystallinitysupporting

confidence: 64%

A critical review on the contributions of chemical and physical factors toward the nucleation and growth of large-area graphene

et al. 2018

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“…1 c) and TEM results (discussed later in “FS-NGF: structure and properties” section). FLG and MLG areas, observed on both FS- and BS-NGF/Ni (front- and back-side NGF grown on Ni) samples, might have grown on large Ni(111) grains formed during preannealing 22 , 30 , 45 . The presence of folds (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…High-magnification SEM images showed a few bright contrast regions present on both sides ( Fig. 1f,g), indicating to the presence of FLG and MLG regions 30,45 . This was also confirmed by Raman ( Fig.…”

Section: Growth Of Fs-and Bs-ngf Polycrystalline Ni Foils Used For Gmentioning

confidence: 97%

Semi-transparent graphite films growth on Ni and their double-sided polymer-free transfer

Deokar

Genovese

Surya

et al. 2020

Sci Rep

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Nanorange thickness graphite films (NGFs) are robust nanomaterials that can be produced via catalytic chemical vapour deposition but questions remain regarding their facile transfer and how surface topography may affect their application in next-generation devices. Here, we report the growth of NGFs (with an area of 55 cm2 and thickness of ~ 100 nm) on both sides of a polycrystalline Ni foil and their polymer-free transfer (front- and back-side, in areas up to 6 cm2). Due to the catalyst foil topography, the two carbon films differed in physical properties and other characteristics such as surface roughness. We demonstrate that the coarser back-side NGF is well-suited for NO2 sensing, whereas the smoother and more electrically conductive front-side NGF (2000 S/cm, sheet resistance − 50 Ω/sq) could be a viable conducting channel or counter electrode in solar cells (as it transmits 62% of visible light). Overall, the growth and transfer processes described could help realizing NGFs as an alternative carbon material for those technological applications where graphene and micrometer-thick graphite films are not an option.

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“…During cooling process, tBLG is formed through the precipitation of carbon atoms underneath the pre-grown graphene layer. [65,66] The modulation of cooling speed and carbon feedstock's concentration has a direct effect on the layer number Figure 1. The structural features of tBLG.…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

Fabrication Strategies of Twisted Bilayer Graphenes and Their Unique Properties

Cai

2021

Advanced Materials

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Therefore, graphene becomes a rising star on the horizon of materials science. Since the first report of centimeter-scale single-crystal graphene by Ruoff group showed high electrical quality, [9] great achievements have been made in the fabrication of high-quality graphene for the application in electronic devices, including single-crystalline graphene flakes, [10,11] super-ordered graphene structures, [12,13] super-clean graphene films, [14-16] and ultra-flat graphene films. [17] However, the zero-bandgap feature for monolayer graphene has limited its potential applications in semiconductors. In addition, the negligible mass, low yield, and high production costs of graphene are insurmountable bottlenecks for the practical application in energy conversion and storage. In particular, the absence of killer applications leads to the increased difficulty in graphene commercialization. [18,19] Nevertheless, it is undeniable that the unique structure of graphene has sparked intense interest in condensed matter physics, such as fractional quantum Hall effects, [17] proton permeation, [20] and plasmons. [21] More interestingly, twisted bilayer graphene (tBLG), which is similar to the van der Waals heterostructures, has a dramatic effect on the electronic properties. [22,23] The relative rotating graphene layers become a powerful model to study topological physical properties, including ferromagnetism, [24] Mott insulating behavior and superconducting behaviors, [25,26] topological valley transport, [27] van Hove singularities, [28] and tunable bandgap. [29] Consequently, the twisted structure of tBLG has triggered tremendous enthusiasm, even inspiring the formation of a new field for twisted 2D materials. Currently, production methods of tBLG contain chemical vapor deposition (CVD) on metal catalysts; [30] epitaxial growth on SiC substrate; [31] folding monolayer graphene, [32] and stacking monolayer graphene. [33] These methods are divided into two categories: direct growth and manual assembly. Generally, the direct growth of tBLG undergoes an in situ rearrangement of carbon atoms in the non-equilibrium state at high temperatures, whereas the ex situ vertical overlap of monolayer graphene by transfer process is the basic principle for manual assembly. The completely different preparation processes give rise to the distinctive advantages and disadvantages, but precise control over twist angle and super-clean interface are the ultimate pursuits for any preparation method. Recent progress in Twisted bilayer graphene (tBLG) exhibits a host of innovative physical phenomena owing to the formation of moiré superlattice. Especially, the discovery of superconducting behavior has generated new interest in graphene. The growing studies of tBLG mainly focus on its physical properties, while the fabrication of high-quality tBLG is a prerequisite for achieving the desired properties due to the great dependence on the twist angle and the interfacial contact. Here, the cutting-edge preparation strategies and challenges of tBLG fabrica...

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Discontinuity and misorientation of graphene grown on nickel foil: Effect of the substrate crystallographic orientation

Cited by 32 publications

References 69 publications

A critical review on the contributions of chemical and physical factors toward the nucleation and growth of large-area graphene

A critical review on the contributions of chemical and physical factors toward the nucleation and growth of large-area graphene

Semi-transparent graphite films growth on Ni and their double-sided polymer-free transfer

Fabrication Strategies of Twisted Bilayer Graphenes and Their Unique Properties

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