The graphene- gold interface and its implications for nanoelectronics

R.S. Sundaram; Mathias Steiner; H.-Y. Chiu; M. Engel; A.A. Bol; R. Krupke; Marko Burghard; K. Kern; Ph. Avouris

doi:10.1021/nl201907u

The graphene- gold interface and its implications for nanoelectronics

R.S. Sundaram, Mathias Steiner, H.-Y. Chiu, M. Engel, A.A. Bol, R. Krupke, Marko Burghard, K. Kern, Ph. Avouris

Processing of low-dimensional nanomaterials

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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.

Original language	English
Pages (from-to)	3833-3837
Journal	Nano Letters
Volume	11
Issue number	9
DOIs	https://doi.org/10.1021/nl201907u
Publication status	Published - 2011

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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.",

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AU - Sundaram, R.S.

AU - Steiner, Mathias

AU - Chiu, H.-Y.

AU - Engel, M.

AU - Bol, A.A.

AU - Krupke, R.

AU - Burghard, Marko

AU - Kern, K.

AU - Avouris, Ph.

PY - 2011

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N2 - 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.

AB - 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.

U2 - 10.1021/nl201907u

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VL - 11

SP - 3833

EP - 3837

JO - Nano Letters

JF - Nano Letters

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The graphene- gold interface and its implications for nanoelectronics

Abstract

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