Highly ordered, millimeter-scale, continuous,single-crystalline graphene monolayer formed on Ru (0001)

Yi Pan; Haigang Zhang; Dongxia Shi; Jiatao Sun; Shixuan Du; Feng Liu; Hong Jun Gao

doi:10.1002/adma.200800761

Highly ordered, millimeter-scale, continuous,single-crystalline graphene monolayer formed on Ru (0001)

Yi Pan, Haigang Zhang, Dongxia Shi, Jiatao Sun, Shixuan Du, Feng Liu, Hong Jun Gao^*

^*Corresponding author for this work

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

397 Citations (Scopus)

Abstract

Highly ordered single-layer graphene was fabricated on a large scale by thermal annealing of a ruthenium single crystal Ru(0001) containing carbon. The graphene layers were grown on a Ru(0001) surface by thermal annealing and Ru crystals with surface was polished to a roughness of less than 0.03 μm, were commercially obtained. The results show that the graphene overlayer has a hexagonal instead of honeycomb lattice due to diatomic resolution of images. XPS and AES analysis of graphene layer show an increase in the intensity at 273 eV that is attributed due to carbon formation on the Ru(0001) surface. It is also found that the dimensions, long-range order, and crystallinity of the graphene layer formed depend strongly on the kinetic parameters. An inappropriately annealed Ru at wrong temperature or time leads to an Ru with 2D hexagonal lattice that is less ordered and contain high density of defects and dislocations.

Original language	English
Pages (from-to)	2777-2780
Number of pages	4
Journal	Advanced Materials
Volume	21
Issue number	27
DOIs	https://doi.org/10.1002/adma.200800761
Publication status	Published - 20 Jul 2009
Externally published	Yes

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title = "Highly ordered, millimeter-scale, continuous,single-crystalline graphene monolayer formed on Ru (0001)",

abstract = "Highly ordered single-layer graphene was fabricated on a large scale by thermal annealing of a ruthenium single crystal Ru(0001) containing carbon. The graphene layers were grown on a Ru(0001) surface by thermal annealing and Ru crystals with surface was polished to a roughness of less than 0.03 μm, were commercially obtained. The results show that the graphene overlayer has a hexagonal instead of honeycomb lattice due to diatomic resolution of images. XPS and AES analysis of graphene layer show an increase in the intensity at 273 eV that is attributed due to carbon formation on the Ru(0001) surface. It is also found that the dimensions, long-range order, and crystallinity of the graphene layer formed depend strongly on the kinetic parameters. An inappropriately annealed Ru at wrong temperature or time leads to an Ru with 2D hexagonal lattice that is less ordered and contain high density of defects and dislocations.",

author = "Yi Pan and Haigang Zhang and Dongxia Shi and Jiatao Sun and Shixuan Du and Feng Liu and Gao, {Hong Jun}",

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TY - JOUR

T1 - Highly ordered, millimeter-scale, continuous,single-crystalline graphene monolayer formed on Ru (0001)

AU - Pan, Yi

AU - Zhang, Haigang

AU - Shi, Dongxia

AU - Sun, Jiatao

AU - Du, Shixuan

AU - Liu, Feng

AU - Gao, Hong Jun

PY - 2009/7/20

Y1 - 2009/7/20

N2 - Highly ordered single-layer graphene was fabricated on a large scale by thermal annealing of a ruthenium single crystal Ru(0001) containing carbon. The graphene layers were grown on a Ru(0001) surface by thermal annealing and Ru crystals with surface was polished to a roughness of less than 0.03 μm, were commercially obtained. The results show that the graphene overlayer has a hexagonal instead of honeycomb lattice due to diatomic resolution of images. XPS and AES analysis of graphene layer show an increase in the intensity at 273 eV that is attributed due to carbon formation on the Ru(0001) surface. It is also found that the dimensions, long-range order, and crystallinity of the graphene layer formed depend strongly on the kinetic parameters. An inappropriately annealed Ru at wrong temperature or time leads to an Ru with 2D hexagonal lattice that is less ordered and contain high density of defects and dislocations.

AB - Highly ordered single-layer graphene was fabricated on a large scale by thermal annealing of a ruthenium single crystal Ru(0001) containing carbon. The graphene layers were grown on a Ru(0001) surface by thermal annealing and Ru crystals with surface was polished to a roughness of less than 0.03 μm, were commercially obtained. The results show that the graphene overlayer has a hexagonal instead of honeycomb lattice due to diatomic resolution of images. XPS and AES analysis of graphene layer show an increase in the intensity at 273 eV that is attributed due to carbon formation on the Ru(0001) surface. It is also found that the dimensions, long-range order, and crystallinity of the graphene layer formed depend strongly on the kinetic parameters. An inappropriately annealed Ru at wrong temperature or time leads to an Ru with 2D hexagonal lattice that is less ordered and contain high density of defects and dislocations.

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JO - Advanced Materials

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ER -

Highly ordered, millimeter-scale, continuous,single-crystalline graphene monolayer formed on Ru (0001)

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