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Seung Ryul Na

Researcher at University of Texas at Austin

Publications -  19
Citations -  486

Seung Ryul Na is an academic researcher from University of Texas at Austin. The author has contributed to research in topics: Graphene & Silicon. The author has an hindex of 9, co-authored 19 publications receiving 400 citations.

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Selective mechanical transfer of graphene from seed copper foil using rate effects.

TL;DR: Control experiments for the epoxy/silicon interface established a rate dependent adhesion, which supports the hypothesis that the adhesion of the graphene/epoxy interface was higher than that of thehene/copper interface at the higher separation rate, thereby providing a controllable mechanism for selective transfer of graphene in future nanofabrication systems such as roll-to-roll transfer.
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Large-Area Dry Transfer of Single-Crystalline Epitaxial Bismuth Thin Films

TL;DR: The first direct dry transfer of a single-crystalline thin film grown by molecular beam epitaxy is reported, suggesting a route to integrate other group-V epitaxial films (i.e., phosphorus) with arbitrary substrates, as well as potentially to isolate bismuthene, the atomic thin-film limit of bismuth.
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Ultra long-range interactions between large area graphene and silicon.

TL;DR: Measurements of the traction-separation relations, which represent the strength and range of adhesive interactions, and the adhesion energy between wet-transferred, CVD grown graphene and the native oxide surface of silicon substrates, suggest that other mechanisms are present.
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Cracking of Polycrystalline Graphene on Copper under Tension

TL;DR: In situ tensile experiments on copper foil coated with graphene grown by chemical vapor deposition provide guidelines for the design of roll-to-roll processes for the dry transfer of graphene and deepens the understanding of the mechanical and interfacial behavior of graphene on copper.
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Probing the adhesion interactions of graphene on silicon oxide by nanoindentation

TL;DR: In this paper, the adhesive interactions between diamond indenters and monolayer, bilayer and trilayer graphene on silicon oxide as well as bare silicon oxide and graphite over relatively small spatial domains were investigated.