J
Joseph M. Wofford
Researcher at University of California, Berkeley
Publications - 17
Citations - 1130
Joseph M. Wofford is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Graphene & Molecular beam epitaxy. The author has an hindex of 11, co-authored 17 publications receiving 1039 citations. Previous affiliations of Joseph M. Wofford include Lawrence Berkeley National Laboratory.
Papers
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Journal ArticleDOI
Graphene Islands on Cu Foils: The Interplay between Shape, Orientation, and Defects
Joseph M. Wofford,Joseph M. Wofford,Shu Nie,Kevin F. McCarty,Norman C. Bartelt,Oscar D. Dubon,Oscar D. Dubon +6 more
TL;DR: The growth of monolayer graphene on Cu foils is observed using low-energy electron microscopy, finding that the shape evolution of the lobes is well explained by an angularly dependent growth velocity.
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Origin of the mosaicity in graphene grown on Cu(111)
TL;DR: In this paper, the authors used low-energy electron microscopy to investigate how graphene grows on smooth, clean Cu(111) and showed that surface diffusion limited by comparing simulations of the time evolution of island shapes with experiments.
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Scanning tunneling microscopy study of graphene on Au(111): Growth mechanisms and substrate interactions
TL;DR: In this article, the authors used scanning tunneling microscopy to study the structure of graphene islands on Au(111) grown by deposition of elemental carbon at 950 µm/C.
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Synthesis of atomically thin hexagonal boron nitride films on nickel foils by molecular beam epitaxy
S. Nakhaie,Joseph M. Wofford,Timo Schumann,Uwe Jahn,Manfred Ramsteiner,Michael Hanke,Joao Marcelo J. Lopes,Henning Riechert +7 more
TL;DR: In this paper, the growth of hexagonal boron nitride (h-BN) films on Ni foils from elemental B and N using molecular beam epitaxy has been reported and the presence of crystalline h-BN over the entire substrate is confirmed by Raman spectroscopy.
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Extraordinary epitaxial alignment of graphene islands on Au(111)
Joseph M. Wofford,Elena Starodub,Andrew L. Walter,Andrew L. Walter,Shu Nie,Aaron Bostwick,Norman C. Bartelt,Konrad Thürmer,Eli Rotenberg,Kevin F. McCarty,Oscar D. Dubon +10 more
TL;DR: In this paper, a monolayer, epitaxial film is formed by the coalescence of dendritic graphene islands that nucleate at a high density and over 95% of these islands can be identically aligned with respect to each other and to the Au substrate.