Iwasaki T, Park HJ, Konuma M, Lee DS, Smet JH, Starke U. Long-range ordered single-crystal graphene on high-quality heteroepitaxial Ni thin films grown on MgO(111).
NANO LETTERS 2011;
11:79-84. [PMID:
21126100 DOI:
10.1021/nl102834q]
[Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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.
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