Long-range ordered single-crystal graphene on high-quality heteroepitaxial Ni thin films grown on MgO(111).
basic_science · Level V
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- Record sourced from PubMed, PMID 21126100.
- Also identified by DOI 10.1021/nl102834q.
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Abstract
Large-area single crystal monolayer graphene is synthesized on Ni(111) thin films, which have flat terraces and no grain boundaries. The flat single-crystal Ni films are heteroepitaxially grown on MgO(111) substrates using a buffer layer technique. Low-energy electron diffraction and various spectroscopic methods reveal the long-range single crystallinity and uniform monolayer thickness of the graphene. When transferred onto an insulating wafer, continuous millimeter-scale single domain graphene is obtained.