DataVXChemistry of MaterialsPaper
journal article·2013-10-08

Insights into the Early Growth of Homogeneous Single-Layer Graphene over Ni–Mo Binary Substrates

Mark H. Rümmeli, Mengqi Zeng, Svetlana Melkhanova, Sandeep Gorantla, Alicja Bachmatiuk, Lei Fu, Chenglin Yan, Steffen Oswald, Rafael G. Mendes, Denys Makarov, Oliver Schmidt, Jürgen Eckert

Chemistry of Materials· Volume 25· Issue 19
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Source abstract

Abstract

The employment of Ni–Mo films has recently been shown to yield strictly homogeneous single-layer graphene. In this study, we systematically investigate the different stages of nucleation and growth of graphene over Ni–Mo layers. The studies reveal that the Ni film breaks up and diffuses into the underlying Mo foil, forming a Ni–Mo intermetallic. Nucleation only occurs from Ni sites, and thus, the nucleation density can be controlled by the Ni film thickness. Both nucleation and growth of the graphene are shown to be susceptible to very efficient self-termination processes to the formation of molybdenum carbide, and this guarantees the formation of large area graphene that consists entirely of monolayer graphene.
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Research context

Metals & alloysNanomaterials

OpenAlex topics: Graphene research and applications · Advancements in Battery Materials · Advanced Memory and Neural Computing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

IBS Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Daejon 305-701, Republic of Korea

Department of Energy Science, Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea

College of Chemistry and Molecular Science, Wuhan University, 430072 Wuhan, China

IFW Dresden, Institute of Complex Materials, P.O. Box 270116, D-01171 Dresden, Germany

IFW Dresden, Institute for Integrative Nanosciences, P.O. Box 270116, D-01171 Dresden, Germany

TU Dresden, Institute of Materials Science, 01062 Dresden, Germany

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