Issue 4, 2020

The formation mechanism of hexagonal Mo2C defects in CVD graphene grown on liquid copper

Abstract

Thin Mo2C hexagonal defects precipitate in CVD graphene when Mo crucibles are engaged to hold the liquid copper substrate, while these defects disappear when W crucibles are present. These defects have been identified as the thin precipitates of Mo2C. The growth mechanism of the Mo2C defects is demonstrated through thermodynamic calculations. This can be beneficial in graphene defect engineering through the vapour phase transport of the volatile MoO3 phase.

Graphical abstract: The formation mechanism of hexagonal Mo2C defects in CVD graphene grown on liquid copper

Supplementary files

Article information

Article type
Paper
Submitted
15 Oct 2019
Accepted
20 Dec 2019
First published
23 Dec 2019

Phys. Chem. Chem. Phys., 2020,22, 2176-2180

The formation mechanism of hexagonal Mo2C defects in CVD graphene grown on liquid copper

M. Saeed, J. D. Robson, I. A. Kinloch, B. Derby, C. Liao, S. Al-Awadhi and E. Al-Nasrallah, Phys. Chem. Chem. Phys., 2020, 22, 2176 DOI: 10.1039/C9CP05618A

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