High quality sub-monolayer, monolayer, and bilayer graphene on Ru(0001)

Wen Yan Xu; Li Huang; Yan De Que; En Li; Hai Gang Zhang; Xiao Lin; Ye Liang Wang; Shi Xuan Du; Hong Jun Gao

doi:10.1088/1674-1056/23/9/098101

High quality sub-monolayer, monolayer, and bilayer graphene on Ru(0001)

Wen Yan Xu, Li Huang, Yan De Que, En Li, Hai Gang Zhang, Xiao Lin^*, Ye Liang Wang, Shi Xuan Du, Hong Jun Gao

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

High quality sub-monolayer, monolayer, and bilayer graphene were grown on Ru(0001). For the sub-monolayer graphene, the size of graphene islands with zigzag edges can be controlled by the dose of ethylene exposure. By increasing the dose of ethylene to 100 Langmuir at a high substrate temperature (800 °C), high quality single-crystalline monolayer graphene was synthesized on Ru(0001). High quality bilayer graphene was formed by further increasing the dose of ethylene while reducing the cooling rate to 5 °C/min. Raman spectroscopy revealed the vibrational states of graphene, G and 2D peaks appeared only in the bilayer graphene, which demonstrates that it behaves as the intrinsic graphene. Our present work affords methods to produce high quality sub-monolayer, monolayer, and bilayer graphene, both for basic research and applications.

Original language	English
Article number	098101
Journal	Chinese Physics B
Volume	23
Issue number	9
DOIs	https://doi.org/10.1088/1674-1056/23/9/098101
Publication status	Published - 2014
Externally published	Yes

Keywords

Ru(0001)
grapheme
scanning tunneling microscopy

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10.1088/1674-1056/23/9/098101

Cite this

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title = "High quality sub-monolayer, monolayer, and bilayer graphene on Ru(0001)",

abstract = "High quality sub-monolayer, monolayer, and bilayer graphene were grown on Ru(0001). For the sub-monolayer graphene, the size of graphene islands with zigzag edges can be controlled by the dose of ethylene exposure. By increasing the dose of ethylene to 100 Langmuir at a high substrate temperature (800 °C), high quality single-crystalline monolayer graphene was synthesized on Ru(0001). High quality bilayer graphene was formed by further increasing the dose of ethylene while reducing the cooling rate to 5 °C/min. Raman spectroscopy revealed the vibrational states of graphene, G and 2D peaks appeared only in the bilayer graphene, which demonstrates that it behaves as the intrinsic graphene. Our present work affords methods to produce high quality sub-monolayer, monolayer, and bilayer graphene, both for basic research and applications.",

keywords = "Ru(0001), grapheme, scanning tunneling microscopy",

author = "Xu, {Wen Yan} and Li Huang and Que, {Yan De} and En Li and Zhang, {Hai Gang} and Xiao Lin and Wang, {Ye Liang} and Du, {Shi Xuan} and Gao, {Hong Jun}",

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doi = "10.1088/1674-1056/23/9/098101",

language = "English",

volume = "23",

journal = "Chinese Physics B",

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TY - JOUR

T1 - High quality sub-monolayer, monolayer, and bilayer graphene on Ru(0001)

AU - Xu, Wen Yan

AU - Huang, Li

AU - Que, Yan De

AU - Li, En

AU - Zhang, Hai Gang

AU - Lin, Xiao

AU - Wang, Ye Liang

AU - Du, Shi Xuan

AU - Gao, Hong Jun

PY - 2014

Y1 - 2014

N2 - High quality sub-monolayer, monolayer, and bilayer graphene were grown on Ru(0001). For the sub-monolayer graphene, the size of graphene islands with zigzag edges can be controlled by the dose of ethylene exposure. By increasing the dose of ethylene to 100 Langmuir at a high substrate temperature (800 °C), high quality single-crystalline monolayer graphene was synthesized on Ru(0001). High quality bilayer graphene was formed by further increasing the dose of ethylene while reducing the cooling rate to 5 °C/min. Raman spectroscopy revealed the vibrational states of graphene, G and 2D peaks appeared only in the bilayer graphene, which demonstrates that it behaves as the intrinsic graphene. Our present work affords methods to produce high quality sub-monolayer, monolayer, and bilayer graphene, both for basic research and applications.

AB - High quality sub-monolayer, monolayer, and bilayer graphene were grown on Ru(0001). For the sub-monolayer graphene, the size of graphene islands with zigzag edges can be controlled by the dose of ethylene exposure. By increasing the dose of ethylene to 100 Langmuir at a high substrate temperature (800 °C), high quality single-crystalline monolayer graphene was synthesized on Ru(0001). High quality bilayer graphene was formed by further increasing the dose of ethylene while reducing the cooling rate to 5 °C/min. Raman spectroscopy revealed the vibrational states of graphene, G and 2D peaks appeared only in the bilayer graphene, which demonstrates that it behaves as the intrinsic graphene. Our present work affords methods to produce high quality sub-monolayer, monolayer, and bilayer graphene, both for basic research and applications.

KW - Ru(0001)

KW - grapheme

KW - scanning tunneling microscopy

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U2 - 10.1088/1674-1056/23/9/098101

DO - 10.1088/1674-1056/23/9/098101

M3 - Article

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SN - 1674-1056

VL - 23

JO - Chinese Physics B

JF - Chinese Physics B

IS - 9

M1 - 098101

ER -

High quality sub-monolayer, monolayer, and bilayer graphene on Ru(0001)

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Keywords

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