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Effect of a Balanced Concentration of Hydrogen on Graphene CVD Growth
Joint Authors
Chaitoglou, S.
Pascual, E.
Bertran, E.
Andujar, J. L.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The extraordinary properties of graphene make it one of the most interesting materials for future applications.
Chemical vapor deposition (CVD) is the synthetic method that permits obtaining large areas of monolayer graphene.
To achieve this, it is important to find the appropriate conditions for each experimental system.
In our CVD reactor working at low pressure, important factors appear to be the pretreatment of the copper substrate, considering both its cleaning and its annealing before the growing process.
The carbon precursor/hydrogen flow ratio and its modification during the growth are significant in order to obtain large area graphene crystals with few defects.
In this work, we have focused on the study of the methane and the hydrogen flows to control the production of single layer graphene (SLG) and its growth time.
In particular, we observe that hydrogen concentration increases during a usual growing process (keeping stable the methane/hydrogen flow ratio) resulting in etched domains.
In order to balance this increase, a modification of the hydrogen flow results in the growth of smooth hexagonal SLG domains.
This is a result of the etching effect that hydrogen performs on the growing graphene.
It is essential, therefore, to study the moderated presence of hydrogen.
American Psychological Association (APA)
Chaitoglou, S.& Pascual, E.& Bertran, E.& Andujar, J. L.. 2016. Effect of a Balanced Concentration of Hydrogen on Graphene CVD Growth. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109527
Modern Language Association (MLA)
Chaitoglou, S.…[et al.]. Effect of a Balanced Concentration of Hydrogen on Graphene CVD Growth. Journal of Nanomaterials No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1109527
American Medical Association (AMA)
Chaitoglou, S.& Pascual, E.& Bertran, E.& Andujar, J. L.. Effect of a Balanced Concentration of Hydrogen on Graphene CVD Growth. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109527