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The Graphene–Gold Interface and Its Implications for Nanoelectronics

Sundaram, Ravi S. ; Steiner, Mathias ; Chiu, Hsin-Ying ; Engel, Michael ; Bol, Ageeth A. ; Krupke, Ralph ; Burghard, Marko ; Kern, Klaus ; Avouris, Phaedon (2011)
The Graphene–Gold Interface and Its Implications for Nanoelectronics.
In: Nano Letters, 11 (9)
doi: 10.1021/nl201907u
Article, Bibliographie

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. ; Steiner, Mathias ; Chiu, Hsin-Ying ; Engel, Michael ; Bol, Ageeth A. ; Krupke, Ralph ; Burghard, Marko ; Kern, Klaus ; Avouris, Phaedon
Type of entry: Bibliographie
Title: The Graphene–Gold Interface and Its Implications for Nanoelectronics
Language: English
Date: 2 August 2011
Journal or Publication Title: Nano Letters
Volume of the journal: 11
Issue Number: 9
DOI: 10.1021/nl201907u
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.

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
Last Modified: 05 Mar 2013 09:55
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