Influence of gas composition on the formation of graphene domain synthesized from camphor

Subash Sharma; Golap Kalita; Ryo Hirano; Yasuhiko Hayashi; Masaki Tanemura

doi:10.1016/j.matlet.2012.11.090

Influence of gas composition on the formation of graphene domain synthesized from camphor

Subash Sharma, Golap Kalita, Ryo Hirano, Yasuhiko Hayashi, Masaki Tanemura

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The domain structure of graphene films deposited by the chemical vapor deposition (CVD) process has a great influence on the electrical and physical properties. Here, we tackled the synthesis of increased domain size of single layer and bi-layer graphene along with few-layer graphene on Ni foil using solid camphor as a carbon source. To achieve this, effect of the composition of carrier gas for the evaporated camphor was investigated. Raman mapping and peak width (FWHM) analyses gave the insight of the quality and number of graphene layers. Optical and scanning electron microcopy studies show significance difference in domain structure of the synthesized graphene in different gas atmosphere. As confirmed by optical and scanning electron microscopes, the graphene domain grown with the carrier gas of Ar/H₂ mixture was more than 10 times larger than those grown with pure Ar carrier gas.

Original language	English
Pages (from-to)	258-262
Number of pages	5
Journal	Materials Letters
Volume	93
DOIs	https://doi.org/10.1016/j.matlet.2012.11.090
Publication status	Published - 2013
Externally published	Yes

Keywords

Domain size
Gas atmosphere
Graphene
Solid camphor

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2012.11.090

Cite this

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title = "Influence of gas composition on the formation of graphene domain synthesized from camphor",

abstract = "The domain structure of graphene films deposited by the chemical vapor deposition (CVD) process has a great influence on the electrical and physical properties. Here, we tackled the synthesis of increased domain size of single layer and bi-layer graphene along with few-layer graphene on Ni foil using solid camphor as a carbon source. To achieve this, effect of the composition of carrier gas for the evaporated camphor was investigated. Raman mapping and peak width (FWHM) analyses gave the insight of the quality and number of graphene layers. Optical and scanning electron microcopy studies show significance difference in domain structure of the synthesized graphene in different gas atmosphere. As confirmed by optical and scanning electron microscopes, the graphene domain grown with the carrier gas of Ar/H2 mixture was more than 10 times larger than those grown with pure Ar carrier gas.",

keywords = "Domain size, Gas atmosphere, Graphene, Solid camphor",

author = "Subash Sharma and Golap Kalita and Ryo Hirano and Yasuhiko Hayashi and Masaki Tanemura",

note = "Funding Information: The Authors are grateful to Human Resource Development, Japan for the financial support as grants-in-aid for science and technology.",

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doi = "10.1016/j.matlet.2012.11.090",

language = "English",

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pages = "258--262",

journal = "Materials Letters",

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T1 - Influence of gas composition on the formation of graphene domain synthesized from camphor

AU - Sharma, Subash

AU - Kalita, Golap

AU - Hirano, Ryo

AU - Hayashi, Yasuhiko

AU - Tanemura, Masaki

N1 - Funding Information: The Authors are grateful to Human Resource Development, Japan for the financial support as grants-in-aid for science and technology.

PY - 2013

Y1 - 2013

N2 - The domain structure of graphene films deposited by the chemical vapor deposition (CVD) process has a great influence on the electrical and physical properties. Here, we tackled the synthesis of increased domain size of single layer and bi-layer graphene along with few-layer graphene on Ni foil using solid camphor as a carbon source. To achieve this, effect of the composition of carrier gas for the evaporated camphor was investigated. Raman mapping and peak width (FWHM) analyses gave the insight of the quality and number of graphene layers. Optical and scanning electron microcopy studies show significance difference in domain structure of the synthesized graphene in different gas atmosphere. As confirmed by optical and scanning electron microscopes, the graphene domain grown with the carrier gas of Ar/H2 mixture was more than 10 times larger than those grown with pure Ar carrier gas.

AB - The domain structure of graphene films deposited by the chemical vapor deposition (CVD) process has a great influence on the electrical and physical properties. Here, we tackled the synthesis of increased domain size of single layer and bi-layer graphene along with few-layer graphene on Ni foil using solid camphor as a carbon source. To achieve this, effect of the composition of carrier gas for the evaporated camphor was investigated. Raman mapping and peak width (FWHM) analyses gave the insight of the quality and number of graphene layers. Optical and scanning electron microcopy studies show significance difference in domain structure of the synthesized graphene in different gas atmosphere. As confirmed by optical and scanning electron microscopes, the graphene domain grown with the carrier gas of Ar/H2 mixture was more than 10 times larger than those grown with pure Ar carrier gas.

KW - Domain size

KW - Gas atmosphere

KW - Graphene

KW - Solid camphor

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VL - 93

SP - 258

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JO - Materials Letters

JF - Materials Letters

ER -

Influence of gas composition on the formation of graphene domain synthesized from camphor

Abstract

Keywords

ASJC Scopus subject areas

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