Liquid metal catalyzed chemical vapor deposition towards morphology engineering of 2D epitaxial heterostructures

Li, Lin; Zhang, Qing; Li, Hang; Geng, Dechao

doi:10.1039/d3cc04914k

Cited by 4 publications

(4 citation statements)

References 65 publications

(85 reference statements)

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“…The equipment used here is schematically illustrated in Figure S1. Cu foil was heated to the liquid state to proceed the reaction because liquid metal features the advantages of fluidity, ductility, dynamic surface, and isotropy and thus was suitable for producing highly uniform samples, as reported in our previous works. , The presence of W foil also serves a catalytic function. Note that W foil can be altered to Mo foil to implement the reaction.…”

Section: Resultsmentioning

confidence: 99%

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays

Li,

Zhang,

et al. 2024

ACS Appl. Electron. Mater.

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The direct growth of two-dimensional (2D) materials on the surface of an insulating substrate holds significant promise for the construction of electronic and optoelectronic devices, facilitating their adaption to semiconductor manufacturing lines, but remains challenging. Herein, we present a facile and effective method for the direct synthesis of novel 2D SiO 2 domains and as-oriented graphene arrays with the assistance of Cu vapor by chemical vapor deposition. The morphology engineering of SiO 2 domains has been realized by modulating the growth temperature and time with high reproducibility and outstanding uniformity. Moreover, our method results in the formation of hexagonal graphene arrays featuring a highly aligned orientation on the as-grown SiO 2 flakes. These spontaneously formed vertical heterostructures provide an opportunity to directly construct devices without chemical etching transfer. As a result, the field-effect transistor based on the spontaneously formed graphene/2D SiO 2 heterostructure performed an ultrahigh charge mobility of 58650 cm 2 V −1 s −1 . The controllable synthesis of a 2D SiO 2 array and SiO 2 /graphene heterostructures opens up broad prospects for tailoring customized 2D materials, enabling a significant step toward realizing the full potential of 2D materials in electronic and optoelectronic device fabrication.

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Section: Resultsmentioning

confidence: 99%

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays

Li,

Zhang,

et al. 2024

ACS Appl. Electron. Mater.

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“…Such heterostructures are varied in type and are increasingly being recognized as important in 2D catalysis and materials development. 411,426,[433][434][435][436][437][438][439] Adapted with permission. 378 Copyright 2018, Elsevier.…”

Section: Methodsmentioning

confidence: 99%

Emerging two-dimensional materials: Synthesis, physical properties, and application for catalysis in energy conversion and storage

Xu,

Iqbal,

Wang

et al. 2024

TIMS

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<p>Inorganic, organic, and hybrid two-dimensional (2D) materials are being developed for ever-expanding numbers of applications, though energy and catalysis remain the main drivers of their development. We present overviews of bottom-up and top-down synthetic strategies of such materials and examine manufacturing scalability issues. Mechanical, electrical, and thermal properties and their modulation are highlighted because they are fundamental to the above-mentioned drivers. The burgeoning importance of heterostructures in such materials, particularly for catalysis and electrode design and function is stressed. Detailed attention is given to applications of 2D materials to the electrocatalysis reactions: oxygen reduction, oxygen evolution, hydrogen evolution, carbon dioxide reduction, and nitrogen reduction. Water splitting, carbon dioxide reduction, and nitrogen reduction by photocatalysis are also examined. A perspective of expected advances in the expansion of applications and types of 2D materials, with a focus on heterostructure development, is presented in the conclusion.</p>

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“…Morphology engineering of 2D materials involves deliberate manipulation and control of their structural characteristics, such as size, shape, orientation, 201 and surface features, 202,203 to tailor and optimize the structural characteristics of these materials to achieve desired properties and functionalities for specific applications. It enables precise control over electronic, mechanical, optical, and structural characteristics, thereby advancing the development of next-generation functional devices and technologies.…”

Section: Atomic Engineeringmentioning

confidence: 99%

Atomic engineering of two-dimensional materials via liquid metals

Li,

Zhang,

Geng

et al. 2024

Chem. Soc. Rev.

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Liquid metal catalyzed chemical vapor deposition towards morphology engineering of 2D epitaxial heterostructures

Abstract: Liquid metal catalyzed morphology engineering allows for exercising control over critical parameters of 2D epitaxial heterostructures such as density, size, and thickness, achieved through gas flow modulation, substrate selection, or etching.

Cited by 4 publications

References 65 publications

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays

Emerging two-dimensional materials: Synthesis, physical properties, and application for catalysis in energy conversion and storage

Atomic engineering of two-dimensional materials via liquid metals

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Liquid metal catalyzed chemical vapor deposition towards morphology engineering of 2D epitaxial heterostructures

Abstract: Liquid metal catalyzed morphology engineering allows for exercising control over critical parameters of 2D epitaxial heterostructures such as density, size, and thickness, achieved through gas flow modulation, substrate selection, or etching.

Cited by 4 publications

References 65 publications

Cu-Vapor-Assisted Growth of 2D SiO2 Flakes and As-Oriented Graphene Arrays

Cu-Vapor-Assisted Growth of 2D SiO2 Flakes and As-Oriented Graphene Arrays

Emerging two-dimensional materials: Synthesis, physical properties, and application for catalysis in energy conversion and storage

Atomic engineering of two-dimensional materials via liquid metals

Contact Info

Product

Resources

About

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays

Cu-Vapor-Assisted Growth of 2D SiO₂ Flakes and As-Oriented Graphene Arrays