Graphene Translucency and Interfacial Interactions in the Gold/Graphene/SiC System

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Title: Graphene Translucency and Interfacial Interactions in the Gold/Graphene/SiC System
Authors: Caccia, Mario | Giuranno, Donatella | Molina Jordá, José Miguel | Moral, Mónica | Nowak, Rafal | Ricci, Enrica | Sobczak, Natalie | Narciso, Javier | Fernández Sanz, Javier
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Graphene translucency | Interfacial interactions | Gold/Graphene/SiC System
Knowledge Area: Química Inorgánica
Issue Date: 25-Jun-2018
Publisher: American Chemical Society
Citation: The Journal of Physical Chemistry Letters. 2018, 9: 3850-3855. doi:10.1021/acs.jpclett.8b01384
Abstract: Integration of graphene into electronic circuits through its joining with conventional metal electrodes (i.e., gold) appears to be one of the main technological challenges nowadays. To gain insight into this junction, we have studied the physicochemical interactions between SiC-supported graphene and a drop of molten gold. Using appropriate high-temperature experimental conditions, we perform wetting experiments and determine contact angles for gold drops supported on graphene epitaxially grown on 4H-SiC. The properties of the metal/graphene interface are analyzed using a wide variety of characterization techniques, along with computational simulations based on density functional theory. In contrast with the established literature, our outcomes clearly show that graphene is translucent in the gold/graphene/SiC interface, and therefore its integration into electronic circuits primarily depends on the right choice of the support to produce favorable wetting interactions with liquid gold.
Sponsor: The work performed at the University of Alicante was funded by the Spanish “Ministerio de Economía y Competitividad” (Grants MAT2016-77742-C2-2-P and MAT2017-86992-R) and the “Generalitat Valenciana” (PROMETEO II/2014/004-FEDER). The work performed at the University of Sevilla was funded by the Spanish “Ministerio de Economía y Competitividad” (Grant CTQ2015-64669-P), “Junta de Andalucía” and European FEDER (Grant P12-FQM-1595). Also, M.M. thanks the E2TP CYTEMA-Santander Program for their financial support. The work performed at the Foundry Research Institute was funded by the Ministry of Science and Higher Education of Poland (Project No. IOd-6619/00).
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.8b01384
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 American Chemical Society
Peer Review: si
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Appears in Collections:INV - LMA - Artículos de Revistas

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