title: The graphene-gold interface and its implications for nanoelectronics.
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.
authors.affiliation: Max-Planck-Institute for Solid State Research, 70569 Stuttgart, Germany.
authors.forename: Ravi S
authors.initials: RS
authors.lastname: Sundaram
authors.forename: Mathias
authors.initials: M
authors.lastname: Steiner
authors.forename: Hsin-Ying
authors.initials: HY
authors.lastname: Chiu
authors.forename: Michael
authors.initials: M
authors.lastname: Engel
authors.forename: Ageeth A
authors.initials: AA
authors.lastname: Bol
authors.forename: Ralph
authors.initials: R
authors.lastname: Krupke
authors.forename: Marko
authors.initials: M
authors.lastname: Burghard
authors.forename: Klaus
authors.initials: K
authors.lastname: Kern
authors.forename: Phaedon
authors.initials: P
authors.lastname: Avouris
mesh_terms: D003102:Colloids / Q000737:chemistry*; D004581:Electronics; D004583:Electrons; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D008670:Metals / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics; D060739:Phonons; D012666:Semiconductors
chemical_list: D003102:Colloids; D008670:Metals; D006046:Gold; D006108:Graphite