Formation of regular stripes of chemically converted graphene on hydrophilic substrates

Yufei Wang, Yasushi Mino, Satoshi Watanabe, Dan Li, Xuehua Zhang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Chemically converted graphene (CCG), from a chemistry point of view, is a giant molecule with a unique two-dimensional (2D) configuration. The availability of CCG dispersion provides a range of scalable methods to assemble graphene-based materials but brings the challenge of understanding and control of the CCG morphology in solution processing. In this study, we found that, similar to conventional colloidal systems (e.g., spherical particles or polymers), a 2D sheet of CCG can be transferred from its aqueous dispersion to solid substrates in the form of highly regular stripe patterns by evaporation-driven deposition. The width and spacing can be defined by the concentration of the CCG dispersion and the properties of the substrate (e.g., roughness and surface charge). Furthermore, the high resolution AFM images illustrate that both 2D flattened and highly wrinkled CCG can be formed in each individual stripe, depending on the location across the stripe. The in situ optical observation of the stripe formation indicates that the morphological change of CCG may occur in the crowded meniscus of the drying front.

Original languageEnglish
Pages (from-to)6176-6181
Number of pages6
JournalACS Applied Materials and Interfaces
Volume5
Issue number13
DOIs
Publication statusPublished - Jul 10 2013
Externally publishedYes

Fingerprint

Graphite
Graphene
Substrates
Surface charge
Image resolution
Drying
Polymers
Evaporation
Surface roughness
Availability
Molecules
Processing

Keywords

  • chemically converted graphene
  • hydrophilic surfaces
  • regular stripe pattern
  • self-assembly

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Formation of regular stripes of chemically converted graphene on hydrophilic substrates. / Wang, Yufei; Mino, Yasushi; Watanabe, Satoshi; Li, Dan; Zhang, Xuehua.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 13, 10.07.2013, p. 6176-6181.

Research output: Contribution to journalArticle

Wang, Yufei ; Mino, Yasushi ; Watanabe, Satoshi ; Li, Dan ; Zhang, Xuehua. / Formation of regular stripes of chemically converted graphene on hydrophilic substrates. In: ACS Applied Materials and Interfaces. 2013 ; Vol. 5, No. 13. pp. 6176-6181.
@article{5a2918cb4c3c4ea1b1fd03b088cb28d4,
title = "Formation of regular stripes of chemically converted graphene on hydrophilic substrates",
abstract = "Chemically converted graphene (CCG), from a chemistry point of view, is a giant molecule with a unique two-dimensional (2D) configuration. The availability of CCG dispersion provides a range of scalable methods to assemble graphene-based materials but brings the challenge of understanding and control of the CCG morphology in solution processing. In this study, we found that, similar to conventional colloidal systems (e.g., spherical particles or polymers), a 2D sheet of CCG can be transferred from its aqueous dispersion to solid substrates in the form of highly regular stripe patterns by evaporation-driven deposition. The width and spacing can be defined by the concentration of the CCG dispersion and the properties of the substrate (e.g., roughness and surface charge). Furthermore, the high resolution AFM images illustrate that both 2D flattened and highly wrinkled CCG can be formed in each individual stripe, depending on the location across the stripe. The in situ optical observation of the stripe formation indicates that the morphological change of CCG may occur in the crowded meniscus of the drying front.",
keywords = "chemically converted graphene, hydrophilic surfaces, regular stripe pattern, self-assembly",
author = "Yufei Wang and Yasushi Mino and Satoshi Watanabe and Dan Li and Xuehua Zhang",
year = "2013",
month = "7",
day = "10",
doi = "10.1021/am401918f",
language = "English",
volume = "5",
pages = "6176--6181",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "13",

}

TY - JOUR

T1 - Formation of regular stripes of chemically converted graphene on hydrophilic substrates

AU - Wang, Yufei

AU - Mino, Yasushi

AU - Watanabe, Satoshi

AU - Li, Dan

AU - Zhang, Xuehua

PY - 2013/7/10

Y1 - 2013/7/10

N2 - Chemically converted graphene (CCG), from a chemistry point of view, is a giant molecule with a unique two-dimensional (2D) configuration. The availability of CCG dispersion provides a range of scalable methods to assemble graphene-based materials but brings the challenge of understanding and control of the CCG morphology in solution processing. In this study, we found that, similar to conventional colloidal systems (e.g., spherical particles or polymers), a 2D sheet of CCG can be transferred from its aqueous dispersion to solid substrates in the form of highly regular stripe patterns by evaporation-driven deposition. The width and spacing can be defined by the concentration of the CCG dispersion and the properties of the substrate (e.g., roughness and surface charge). Furthermore, the high resolution AFM images illustrate that both 2D flattened and highly wrinkled CCG can be formed in each individual stripe, depending on the location across the stripe. The in situ optical observation of the stripe formation indicates that the morphological change of CCG may occur in the crowded meniscus of the drying front.

AB - Chemically converted graphene (CCG), from a chemistry point of view, is a giant molecule with a unique two-dimensional (2D) configuration. The availability of CCG dispersion provides a range of scalable methods to assemble graphene-based materials but brings the challenge of understanding and control of the CCG morphology in solution processing. In this study, we found that, similar to conventional colloidal systems (e.g., spherical particles or polymers), a 2D sheet of CCG can be transferred from its aqueous dispersion to solid substrates in the form of highly regular stripe patterns by evaporation-driven deposition. The width and spacing can be defined by the concentration of the CCG dispersion and the properties of the substrate (e.g., roughness and surface charge). Furthermore, the high resolution AFM images illustrate that both 2D flattened and highly wrinkled CCG can be formed in each individual stripe, depending on the location across the stripe. The in situ optical observation of the stripe formation indicates that the morphological change of CCG may occur in the crowded meniscus of the drying front.

KW - chemically converted graphene

KW - hydrophilic surfaces

KW - regular stripe pattern

KW - self-assembly

UR - http://www.scopus.com/inward/record.url?scp=84880051815&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880051815&partnerID=8YFLogxK

U2 - 10.1021/am401918f

DO - 10.1021/am401918f

M3 - Article

C2 - 23725224

AN - SCOPUS:84880051815

VL - 5

SP - 6176

EP - 6181

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 13

ER -