Publication detail

Ultrasmooth metallic foils for growth of high quality graphene by chemical vapor deposition

PROCHÁZKA, P. MACH, J. BISCHOFF, D. LIŠKOVÁ, Z. DVOŘÁK, P. VAŇATKA, M. SIMONET, P. VARLET, A. HEMZAL, D. PETRENEC, M. KALINA, L. BARTOŠÍK, M. ENSSLIN, K. VARGA, P. ČECHAL, J. ŠIKOLA, T.

Original Title

Ultrasmooth metallic foils for growth of high quality graphene by chemical vapor deposition

Type

journal article in Web of Science

Language

English

Original Abstract

Synthesis of graphene by chemical vapor deposition is a promising route for manufacturing large-scale high-quality graphene for electronic applications. The quality of the employed substrates plays a crucial role, since the surface roughness and defects alter the graphene growth and cause difficulties in the subsequent graphene transfer. Here, we report on ultrasmooth high-purity copper foils prepared by sputter deposition of Cu thin film on a SiO2/Si template, and the subsequent peeling off of the metallic layer from the template.The surface displays a low level of oxidation and contamination, and the roughness of the foil surface is generally defined by the template, and was below 0.6 nm even on a large scale. The roughness and grain size increase occurred during both the annealing of the foils, and catalytic growth of graphene from methane (1000 C), but on the large scale still remained far below the roughness typical for commercial foils. The micro-Raman spectroscopy and transport measurements proved the high quality of graphene grown on such foils, and the room temperature mobility of the graphene grown on the template stripped foil was three times higher compared to that of one grown on the commercial copper foil. The presented high-quality copper foils are expected to provide large-area substrates for the production of graphene suitable for electronic applications.

Keywords

graphene, CVD growth, metallic foils

Authors

PROCHÁZKA, P.; MACH, J.; BISCHOFF, D.; LIŠKOVÁ, Z.; DVOŘÁK, P.; VAŇATKA, M.; SIMONET, P.; VARLET, A.; HEMZAL, D.; PETRENEC, M.; KALINA, L.; BARTOŠÍK, M.; ENSSLIN, K.; VARGA, P.; ČECHAL, J.; ŠIKOLA, T.

RIV year

2014

Released

16. 4. 2014

ISBN

0957-4484

Periodical

NANOTECHNOLOGY

Year of study

25

Number

18

State

United Kingdom of Great Britain and Northern Ireland

Pages from

185601-1

Pages to

185601-8

Pages count

8