Fabrication of Large-Area Graphene Using Liquid Gallium and Its Electrical Properties

Fujita, Jun–ichi; Miyazawa, Yosuke; Ueki, Ryuichi; Sasaki, M.; Saito, Tetsuya

doi:10.1143/jjap.49.06gc01

Cited by 30 publications

(20 citation statements)

References 29 publications

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“…Previous research has suggested that graphitization occurs at the interface between carbon and liquid Ga, 14,15,19 but we found that during Ga evaporation graphene was formed not only on the SiO 2 layer but also above any dimples on the SiO 2 layer, which is inconsistent with previous reports. Previous research has suggested that graphitization occurs at the interface between carbon and liquid Ga, 14,15,19 but we found that during Ga evaporation graphene was formed not only on the SiO 2 layer but also above any dimples on the SiO 2 layer, which is inconsistent with previous reports.…”

Section: B Mechanism Of Ga Evaporation Processcontrasting

confidence: 99%

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Selective graphene growth from DLC thin film patterned by focused-ion-beam chemical vapor deposition

Hatakeyama¹,

Kometani²,

Warisawa³

et al. 2011

Journal of Vacuum Science & Technology B, Nanotechnology an

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Articles you may be interested inDynamic characteristics control of DLC nano-resonator fabricated by focused-ion-beam chemical vapor deposition J. Vac. Sci. Technol. B 29, 06FE03 (2011); 10.1116/1.3662493 Resistivity change of the diamondlike carbon, deposited by focused-ion-beam chemical vapor deposition, induced by the annealing treatment Development of a regeneration-type neural interface: A microtube guide for axon growth of neuronal cells fabricated using focused-ion-beam chemical vapor deposition Mechanical characteristics and its annealing effect of diamondlike-carbon nanosprings fabricated by focused-ionbeam chemical vapor deposition

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Section: B Mechanism Of Ga Evaporation Processcontrasting

confidence: 99%

“…2,8 However, although devices fabricated via this method have been observed on SiC substrates, it can be difficult to transfer them to other substrates such as SiO 2 / Si. 14,15 Using liquid Ga has three main advantages. [9][10][11] However, this requires the transfer of graphene to another substrate 12 or etching of the metal layer.…”

Section: Introductionmentioning

confidence: 99%

Selective graphene growth from DLC thin film patterned by focused-ion-beam chemical vapor deposition

Hatakeyama¹,

Kometani²,

Warisawa³

et al. 2011

Journal of Vacuum Science & Technology B, Nanotechnology an

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“…LM alloy has a relatively low melting point, high surface energy, smooth surface plane, and excellent absorbance of carbon,, which is an indication of its potential to act as a good liquid catalyst for graphitization, as well as a solid metal catalyst that can affect the growth, layer number, and crystallinity of graphene [Eq. ]:

true CH_{4} \to normalC + 4 normalH \to 2 normalH_{2} + normalC (graphene) (Gallium catalytic)

…”

Section: The Preparation and Related Applications Of Lm Catalystsmentioning

confidence: 99%

“… LM catalysts for the chemical vapor deposition (CVD) growth of graphene. (a) 1–2 layers of graphene were grown on a LM (Ga) ball for 3–5 min; (b) growth of single‐layer, single‐crystalline graphene films on the LM (Ga) surface; (c) growth of graphene on different surfaces including liquid Ga, liquid In, and liquid Cu; (d) large area of graphene synthesized by Ga vapor‐assisted CVD; (e) growth of graphene on sapphire and polycarbonate by using liquid gallium (Ga) as catalyst; (f) synthesis of graphene on SiO 2 /Si substrates using Ga vapor catalyst; (g) graphene was grown at the interface between LM (Ga) catalyst and sapphire substrate under methane gas; (h) graphene grown at the interface between carbon film and LM (Ga) catalyst ,…”

Section: The Preparation and Related Applications Of Lm Catalystsmentioning

confidence: 99%

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Liang

Wang

Liu

2018

Chemistry A European J

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Among the significant growths of liquid metal (LM) research achieved over the past few years, the field of LM as catalysts offers promising opportunities for material scientists to exploit, and thus, burgeoning progress has been made. This article presents an overview of recent progress in developing LM catalysis, which spans from liquid-phase catalysts, photocatalysts, heterogeneous catalysts, and bimetallic catalysts, to catalysts based on liquid-metal/metal-oxide (LM/MO) frameworks. The different types, preparation methods, and typical applications of LM catalysts are classified and reviewed. Typical catalytic applications of LM systems discussed include the growth of graphene films/nanoribbons/carbon nanotube, photocatalytic degradation of CR or PFOA/splitting of H O/reduction of CO , and catalytic reactions like butane or acetylene dehydrogenation, methanol steam reforming, and reduction of potassium ferricyanide. The prospects, future trends, and challenges of LM catalysts are also mentioned.

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“…The perfectly smooth liquid surface supports uniform nucleation and growth of graphene. The growth of graphene governed by a self-limited surface catalytic process and is robust to variations in CVD growth conditions [89,90]. Homogenous monolayer graphene growth on liquid metals has been achieved using the CVD process.…”

Section: Liquid Metal Catalystmentioning

confidence: 99%

Fundamentals of Chemical Vapor Deposited Graphene and Emerging Applications

Kalita¹,

Tanemura²

2017

Graphene Materials - Advanced Applications

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Graphene, the atomically thin sheet of sp 2 hybridized carbon atoms arranged in honeycomb structure, is becoming the forefront of material research. The chemical vapor deposition (CVD) process has been explored significantly to synthesis large size single crystals and uniform films of monolayer and bilayer graphene. In this prospect, the nucleation and growth mechanism of graphene on a catalytic substrate play the fundamental role on the control growth of layers and large domain. The transition metals and their alloys have been recognized as the active catalyst for growth of monolayer and bilayer graphene, where the surface composition of such catalysts also plays critical role on graphene growth. CVD-synthesized graphene has been integrated with bulk semiconductors such as Si and GaN for the fabrication of solar cells, photodetectors, and lightemitting diodes. Furthermore, CVD graphene has been integrated with hexagonal boron nitride (hBN) and transition metal dichalcogenides (TMDCs) for the fabrication of van der Waals heterostructure for nanoelectronic, optoelectronic, energy devices, and other emerging technologies. The fundamental of the graphene growth process by a CVD technique and various emerging applications in heterostructure devices is discussed in detail.

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Fabrication of Large-Area Graphene Using Liquid Gallium and Its Electrical Properties

Cited by 30 publications

References 29 publications

Selective graphene growth from DLC thin film patterned by focused-ion-beam chemical vapor deposition

Selective graphene growth from DLC thin film patterned by focused-ion-beam chemical vapor deposition

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Fundamentals of Chemical Vapor Deposited Graphene and Emerging Applications

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