Synthesis of graphene based membranes

Effect of substrate surface properties on monolayer graphene transfer

Feras Kafiah, Zafarullah Khan, Ahmed Ibrahim, Muataz Atieh, Tahar Laoui

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this work, we report the transfer of graphene onto eight commercial microfiltration substrates having different pore sizes and surface characteristics. Monolayer graphene grown on copper by the chemical vapor deposition (CVD) process was transferred by the pressing method over the target substrates, followed by wet etching of copper to obtain monolayer graphene/polymer membranes. Scanning electron microscopy (SEM), atomic force microscopy (AFM), and contact angle (CA) measurements were carried out to explore the graphene layer transferability. Three factors, namely, the substrate roughness, its pore size, and its surface wetting (degree of hydrophobicity) are found to affect the conformality and coverage of the transferred graphene monolayer on the substrate surface. A good quality graphene transfer is achieved on the substrate with the following characteristics; being hydrophobic (CA > 90°), having small pore size, and low surface roughness, with a CA to RMS (root mean square) ratio higher than 2.7°/nm.

Original languageEnglish
Article number86
JournalMaterials
Volume10
Issue number1
DOIs
Publication statusPublished - 2017

Fingerprint

Graphite
Graphene
Surface properties
Monolayers
Membranes
Substrates
Pore size
Contact angle
Copper
Surface roughness
Microfiltration
Wet etching
Hydrophobicity
Angle measurement
Wetting
Chemical vapor deposition
Atomic force microscopy
Polymers
Scanning electron microscopy

Keywords

  • Graphene membrane
  • Graphene transfer
  • Hydrophobic
  • Microfiltration membrane
  • Surface roughness

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Synthesis of graphene based membranes : Effect of substrate surface properties on monolayer graphene transfer. / Kafiah, Feras; Khan, Zafarullah; Ibrahim, Ahmed; Atieh, Muataz; Laoui, Tahar.

In: Materials, Vol. 10, No. 1, 86, 2017.

Research output: Contribution to journalArticle

Kafiah, Feras ; Khan, Zafarullah ; Ibrahim, Ahmed ; Atieh, Muataz ; Laoui, Tahar. / Synthesis of graphene based membranes : Effect of substrate surface properties on monolayer graphene transfer. In: Materials. 2017 ; Vol. 10, No. 1.
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