Cobalt-assisted recrystallization and alignment of pure and doped graphene

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Cobalt-assisted recrystallization and alignment of pure and doped graphene. / Usachov, Dmitry Yu.; Bokai, Kirill A.; Marchenko, Dmitry E.; Fedorov, Alexander V.; Shevelev, Viktor O.; Vilkov, Oleg Yu.; Kataev, Elmar Yu.; Yashina, Lada V.; Ruehl, Eckart; Laubschat, Clemens; Vyalikh, Denis V.

In: Nanoscale, Vol. 10, No. 25, 07.07.2018, p. 12123-12132.

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

Author

Usachov, Dmitry Yu. ; Bokai, Kirill A. ; Marchenko, Dmitry E. ; Fedorov, Alexander V. ; Shevelev, Viktor O. ; Vilkov, Oleg Yu. ; Kataev, Elmar Yu. ; Yashina, Lada V. ; Ruehl, Eckart ; Laubschat, Clemens ; Vyalikh, Denis V. / Cobalt-assisted recrystallization and alignment of pure and doped graphene. In: Nanoscale. 2018 ; Vol. 10, No. 25. pp. 12123-12132.

BibTeX

@article{bf3c7440e52c4768a0a92ce7c47ce62b,

title = "Cobalt-assisted recrystallization and alignment of pure and doped graphene",

abstract = "Recrystallization of bulk materials is a well-known phenomenon, which is widely used in commercial manufacturing. However, for low-dimensional materials like graphene, this process still remains an unresolved puzzle. Thus, the understanding of the underlying mechanisms and the required conditions for recrystallization in low dimensions is essential for the elaboration of routes towards the inexpensive and reliable production of high-quality nanomaterials. Here, we unveil the details of the efficient recrystallization of one-atom-thick pure and boron-doped polycrystalline graphene layers on a Co(0001) surface. By applying photoemission and electron diffraction, we show how more than 90% of the initially misoriented graphene grains can be reconstructed into a well-oriented and single-crystalline layer. The obtained recrystallized graphene/Co interface exhibits high structural quality with a pronounced sublattice asymmetry, which is important for achieving an unbalanced sublattice doping of graphene. By exploring the kinetics of recrystallization for native and B-doped graphene on Co, we were able to estimate the activation energy and propose a mechanism of this process.",

keywords = "ATOMIC-STRUCTURE, GROWTH, SURFACES, NI(111), CARBON",

author = "Usachov, {Dmitry Yu.} and Bokai, {Kirill A.} and Marchenko, {Dmitry E.} and Fedorov, {Alexander V.} and Shevelev, {Viktor O.} and Vilkov, {Oleg Yu.} and Kataev, {Elmar Yu.} and Yashina, {Lada V.} and Eckart Ruehl and Clemens Laubschat and Vyalikh, {Denis V.}",

year = "2018",

month = jul,

day = "7",

doi = "10.1039/c8nr03183e",

language = "Английский",

volume = "10",

pages = "12123--12132",

journal = "Nanoscale",

issn = "2040-3364",

publisher = "Royal Society of Chemistry",

number = "25",

}

RIS

TY - JOUR

T1 - Cobalt-assisted recrystallization and alignment of pure and doped graphene

AU - Usachov, Dmitry Yu.

AU - Bokai, Kirill A.

AU - Marchenko, Dmitry E.

AU - Fedorov, Alexander V.

AU - Shevelev, Viktor O.

AU - Vilkov, Oleg Yu.

AU - Kataev, Elmar Yu.

AU - Yashina, Lada V.

AU - Ruehl, Eckart

AU - Laubschat, Clemens

AU - Vyalikh, Denis V.

PY - 2018/7/7

Y1 - 2018/7/7

N2 - Recrystallization of bulk materials is a well-known phenomenon, which is widely used in commercial manufacturing. However, for low-dimensional materials like graphene, this process still remains an unresolved puzzle. Thus, the understanding of the underlying mechanisms and the required conditions for recrystallization in low dimensions is essential for the elaboration of routes towards the inexpensive and reliable production of high-quality nanomaterials. Here, we unveil the details of the efficient recrystallization of one-atom-thick pure and boron-doped polycrystalline graphene layers on a Co(0001) surface. By applying photoemission and electron diffraction, we show how more than 90% of the initially misoriented graphene grains can be reconstructed into a well-oriented and single-crystalline layer. The obtained recrystallized graphene/Co interface exhibits high structural quality with a pronounced sublattice asymmetry, which is important for achieving an unbalanced sublattice doping of graphene. By exploring the kinetics of recrystallization for native and B-doped graphene on Co, we were able to estimate the activation energy and propose a mechanism of this process.

AB - Recrystallization of bulk materials is a well-known phenomenon, which is widely used in commercial manufacturing. However, for low-dimensional materials like graphene, this process still remains an unresolved puzzle. Thus, the understanding of the underlying mechanisms and the required conditions for recrystallization in low dimensions is essential for the elaboration of routes towards the inexpensive and reliable production of high-quality nanomaterials. Here, we unveil the details of the efficient recrystallization of one-atom-thick pure and boron-doped polycrystalline graphene layers on a Co(0001) surface. By applying photoemission and electron diffraction, we show how more than 90% of the initially misoriented graphene grains can be reconstructed into a well-oriented and single-crystalline layer. The obtained recrystallized graphene/Co interface exhibits high structural quality with a pronounced sublattice asymmetry, which is important for achieving an unbalanced sublattice doping of graphene. By exploring the kinetics of recrystallization for native and B-doped graphene on Co, we were able to estimate the activation energy and propose a mechanism of this process.

KW - ATOMIC-STRUCTURE

KW - GROWTH

KW - SURFACES

KW - NI(111)

KW - CARBON

UR - http://www.mendeley.com/research/cobaltassisted-recrystallization-alignment-pure-doped-graphene-1

U2 - 10.1039/c8nr03183e

DO - 10.1039/c8nr03183e

M3 - статья

VL - 10

SP - 12123

EP - 12132

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 25

ER -

ID: 33793955