Influence of graphene thickness and grain boundaries on MoS2 wrinkle nanostructures

Seon Joon Kim, Ohmin Kwon, Daewoo Kim, Jihan Kim, Hee Tae Jung

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Controlling wrinkle nanostructures of two-dimensional materials is critical for optimizing the material properties and device performance. In this study, we demonstrated the in situ synthesis of large-area MoS2 wrinkles on graphene by chemical-vapor-deposition-assisted sulfurization, and investigated the influence of graphene thickness and grain structures on the feature dimensions of MoS2 wrinkle nanostructures. The height, width, and overall surface roughness of the MoS2 wrinkles diminish as the number of graphene layers increases, which was further verified by determining the binding energy of graphene layers by density functional theory calculations. Furthermore, the feature dimensions of MoS2 wrinkle nanostructures were also influenced by graphene domain boundaries because of the difference in graphene nucleation density. This may be attributed to the influence of the mechanical properties of graphene substrates on the overall feature dimensions of MoS2 wrinkles, which are directly correlated with the interfacial adhesion energy. We believe that our findings may contribute toward the controllable synthesis of MoS2 wrinkle nanostructures and other two-dimensional materials used for high-performance devices.

Original languageEnglish
Pages (from-to)17000-17008
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume20
Issue number25
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

Graphite
Nanostructures
graphene
Grain boundaries
grain boundaries
Strategic materials
Crystal microstructure
synthesis
Binding energy
Density functional theory
Chemical vapor deposition
Materials properties
surface roughness
adhesion
Nucleation
Adhesion
binding energy
Surface roughness
vapor deposition
nucleation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kim, Seon Joon ; Kwon, Ohmin ; Kim, Daewoo ; Kim, Jihan ; Jung, Hee Tae. / Influence of graphene thickness and grain boundaries on MoS2 wrinkle nanostructures. In: Physical Chemistry Chemical Physics. 2018 ; Vol. 20, No. 25. pp. 17000-17008.
@article{ef52b4dc2238430389bfe944b5fef8eb,
title = "Influence of graphene thickness and grain boundaries on MoS2 wrinkle nanostructures",
abstract = "Controlling wrinkle nanostructures of two-dimensional materials is critical for optimizing the material properties and device performance. In this study, we demonstrated the in situ synthesis of large-area MoS2 wrinkles on graphene by chemical-vapor-deposition-assisted sulfurization, and investigated the influence of graphene thickness and grain structures on the feature dimensions of MoS2 wrinkle nanostructures. The height, width, and overall surface roughness of the MoS2 wrinkles diminish as the number of graphene layers increases, which was further verified by determining the binding energy of graphene layers by density functional theory calculations. Furthermore, the feature dimensions of MoS2 wrinkle nanostructures were also influenced by graphene domain boundaries because of the difference in graphene nucleation density. This may be attributed to the influence of the mechanical properties of graphene substrates on the overall feature dimensions of MoS2 wrinkles, which are directly correlated with the interfacial adhesion energy. We believe that our findings may contribute toward the controllable synthesis of MoS2 wrinkle nanostructures and other two-dimensional materials used for high-performance devices.",
author = "Kim, {Seon Joon} and Ohmin Kwon and Daewoo Kim and Jihan Kim and Jung, {Hee Tae}",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c8cp02460j",
language = "English",
volume = "20",
pages = "17000--17008",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "25",

}

Influence of graphene thickness and grain boundaries on MoS2 wrinkle nanostructures. / Kim, Seon Joon; Kwon, Ohmin; Kim, Daewoo; Kim, Jihan; Jung, Hee Tae.

In: Physical Chemistry Chemical Physics, Vol. 20, No. 25, 01.01.2018, p. 17000-17008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of graphene thickness and grain boundaries on MoS2 wrinkle nanostructures

AU - Kim, Seon Joon

AU - Kwon, Ohmin

AU - Kim, Daewoo

AU - Kim, Jihan

AU - Jung, Hee Tae

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Controlling wrinkle nanostructures of two-dimensional materials is critical for optimizing the material properties and device performance. In this study, we demonstrated the in situ synthesis of large-area MoS2 wrinkles on graphene by chemical-vapor-deposition-assisted sulfurization, and investigated the influence of graphene thickness and grain structures on the feature dimensions of MoS2 wrinkle nanostructures. The height, width, and overall surface roughness of the MoS2 wrinkles diminish as the number of graphene layers increases, which was further verified by determining the binding energy of graphene layers by density functional theory calculations. Furthermore, the feature dimensions of MoS2 wrinkle nanostructures were also influenced by graphene domain boundaries because of the difference in graphene nucleation density. This may be attributed to the influence of the mechanical properties of graphene substrates on the overall feature dimensions of MoS2 wrinkles, which are directly correlated with the interfacial adhesion energy. We believe that our findings may contribute toward the controllable synthesis of MoS2 wrinkle nanostructures and other two-dimensional materials used for high-performance devices.

AB - Controlling wrinkle nanostructures of two-dimensional materials is critical for optimizing the material properties and device performance. In this study, we demonstrated the in situ synthesis of large-area MoS2 wrinkles on graphene by chemical-vapor-deposition-assisted sulfurization, and investigated the influence of graphene thickness and grain structures on the feature dimensions of MoS2 wrinkle nanostructures. The height, width, and overall surface roughness of the MoS2 wrinkles diminish as the number of graphene layers increases, which was further verified by determining the binding energy of graphene layers by density functional theory calculations. Furthermore, the feature dimensions of MoS2 wrinkle nanostructures were also influenced by graphene domain boundaries because of the difference in graphene nucleation density. This may be attributed to the influence of the mechanical properties of graphene substrates on the overall feature dimensions of MoS2 wrinkles, which are directly correlated with the interfacial adhesion energy. We believe that our findings may contribute toward the controllable synthesis of MoS2 wrinkle nanostructures and other two-dimensional materials used for high-performance devices.

UR - http://www.scopus.com/inward/record.url?scp=85049250929&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049250929&partnerID=8YFLogxK

U2 - 10.1039/c8cp02460j

DO - 10.1039/c8cp02460j

M3 - Article

AN - SCOPUS:85049250929

VL - 20

SP - 17000

EP - 17008

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 25

ER -