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The Graphene–Gold Interface and Its Implications for Nanoelectronics

Sundaram, Ravi S. and Steiner, Mathias and Chiu, Hsin-Ying and Engel, Michael and Bol, Ageeth A. and Krupke, Ralph and Burghard, Marko and Kern, Klaus and Avouris, Phaedon (2011):
The Graphene–Gold Interface and Its Implications for Nanoelectronics.
In: Nano Letters, pp. 3833-3837, 11, (9), ISSN 1530-6984,
[Online-Edition: http://dx.doi.org/10.1021/nl201907u],
[Article]

Abstract

We combine optical microspectroscopy and electronic measurements to study how gold deposition affects the physical properties of graphene. We find that the electronic structure, the electron–phonon coupling, and the doping level in gold-plated graphene are largely preserved. The transfer lengths for electrons and holes at the graphene–gold contact have values as high as 1.6 μm. However, the interfacial coupling of graphene and gold causes local temperature drops of up to 500 K in operating electronic devices.

Item Type: Article
Erschienen: 2011
Creators: Sundaram, Ravi S. and Steiner, Mathias and Chiu, Hsin-Ying and Engel, Michael and Bol, Ageeth A. and Krupke, Ralph and Burghard, Marko and Kern, Klaus and Avouris, Phaedon
Title: The Graphene–Gold Interface and Its Implications for Nanoelectronics
Language: English
Abstract:

We combine optical microspectroscopy and electronic measurements to study how gold deposition affects the physical properties of graphene. We find that the electronic structure, the electron–phonon coupling, and the doping level in gold-plated graphene are largely preserved. The transfer lengths for electrons and holes at the graphene–gold contact have values as high as 1.6 μm. However, the interfacial coupling of graphene and gold causes local temperature drops of up to 500 K in operating electronic devices.

Journal or Publication Title: Nano Letters
Volume: 11
Number: 9
Uncontrolled Keywords: Graphene; gold; semiconductor−metal contact; nano-electronics; nano-optics
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 08 Nov 2011 10:34
Official URL: http://dx.doi.org/10.1021/nl201907u
Identification Number: doi:10.1021/nl201907u
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