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Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching

The direct observation of single crystal graphene growth and its shape evolution is of fundamental importance to the understanding of graphene growth physicochemical mechanisms and the achievement of wafer-scale single crystalline graphene. Here we demonstrate the controlled formation of single crys...

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Detalles Bibliográficos
Autores principales: Wu, Chaoxing, Li, Fushan, Chen, Wei, Veeramalai, Chandrasekar Perumal, Ooi, Poh Choon, Guo, Tailiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7365330/
https://www.ncbi.nlm.nih.gov/pubmed/25762066
http://dx.doi.org/10.1038/srep09034
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author Wu, Chaoxing
Li, Fushan
Chen, Wei
Veeramalai, Chandrasekar Perumal
Ooi, Poh Choon
Guo, Tailiang
author_facet Wu, Chaoxing
Li, Fushan
Chen, Wei
Veeramalai, Chandrasekar Perumal
Ooi, Poh Choon
Guo, Tailiang
author_sort Wu, Chaoxing
collection PubMed
description The direct observation of single crystal graphene growth and its shape evolution is of fundamental importance to the understanding of graphene growth physicochemical mechanisms and the achievement of wafer-scale single crystalline graphene. Here we demonstrate the controlled formation of single crystal graphene with varying shapes and directly observe the shape evolution of single crystal graphene by developing a localized-heating and rapid-quenching chemical vapor deposition (CVD) system based on electromagnetic induction heating. Importantly, rational control of circular, hexagonal and dendritic single crystalline graphene domains can be readily obtained for the first time by changing the growth condition. Systematic studies suggest that the graphene nucleation only occurs during the initial stage, while the domain density is independent of the growth temperatures due to the surface-limiting effect. In addition, the direct observation of graphene domain shape evolution is employed for the identification of competing growth mechanisms including diffusion-limited, attachment-limited and detachment-limited processes. Our study not only provides a novel method for morphology-controlled graphene synthesis, but also offers fundamental insights into the kinetics of single crystal graphene growth.
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spelling pubmed-73653302020-07-23 Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching Wu, Chaoxing Li, Fushan Chen, Wei Veeramalai, Chandrasekar Perumal Ooi, Poh Choon Guo, Tailiang Sci Rep Article The direct observation of single crystal graphene growth and its shape evolution is of fundamental importance to the understanding of graphene growth physicochemical mechanisms and the achievement of wafer-scale single crystalline graphene. Here we demonstrate the controlled formation of single crystal graphene with varying shapes and directly observe the shape evolution of single crystal graphene by developing a localized-heating and rapid-quenching chemical vapor deposition (CVD) system based on electromagnetic induction heating. Importantly, rational control of circular, hexagonal and dendritic single crystalline graphene domains can be readily obtained for the first time by changing the growth condition. Systematic studies suggest that the graphene nucleation only occurs during the initial stage, while the domain density is independent of the growth temperatures due to the surface-limiting effect. In addition, the direct observation of graphene domain shape evolution is employed for the identification of competing growth mechanisms including diffusion-limited, attachment-limited and detachment-limited processes. Our study not only provides a novel method for morphology-controlled graphene synthesis, but also offers fundamental insights into the kinetics of single crystal graphene growth. Nature Publishing Group UK 2015-03-12 /pmc/articles/PMC7365330/ /pubmed/25762066 http://dx.doi.org/10.1038/srep09034 Text en © The Author(s) 2015 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wu, Chaoxing
Li, Fushan
Chen, Wei
Veeramalai, Chandrasekar Perumal
Ooi, Poh Choon
Guo, Tailiang
Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title_full Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title_fullStr Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title_full_unstemmed Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title_short Electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
title_sort electromagnetic induction heating for single crystal graphene growth: morphology control by rapid heating and quenching
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7365330/
https://www.ncbi.nlm.nih.gov/pubmed/25762066
http://dx.doi.org/10.1038/srep09034
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