title: Redox-Dependent Franck-Condon Blockade and Avalanche Transport in a Graphene-Fullerene Single-Molecule Transistor.
abstract: We report transport measurements on a graphene-fullerene single-molecule transistor. The device architecture where a functionalized C60 binds to graphene nanoelectrodes results in strong electron-vibron coupling and weak vibron relaxation. Using a combined approach of transport spectroscopy, Raman spectroscopy, and DFT calculations, we demonstrate center-of-mass oscillations, redox-dependent Franck-Condon blockade, and a transport regime characterized by avalanche tunnelling in a single-molecule transistor.
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Chit Siong
authors.initials: CS
authors.lastname: Lau
authors.affiliation: Quantum Technology Center, Physics Department, Lancaster University , Lancaster LA1 4YB, United Kingdom.
authors.forename: Hatef
authors.initials: H
authors.lastname: Sadeghi
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Gregory
authors.initials: G
authors.lastname: Rogers
authors.affiliation: Quantum Technology Center, Physics Department, Lancaster University , Lancaster LA1 4YB, United Kingdom.
authors.forename: Sara
authors.initials: S
authors.lastname: Sangtarash
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Dallas
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Kyriakos
authors.initials: K
authors.lastname: Porfyrakis
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Jamie
authors.initials: J
authors.lastname: Warner
authors.affiliation: Quantum Technology Center, Physics Department, Lancaster University , Lancaster LA1 4YB, United Kingdom.
authors.forename: Colin J
authors.initials: CJ
authors.lastname: Lambert
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: G Andrew D
authors.initials: GA
authors.lastname: Briggs
authors.affiliation: Department of Materials, University of Oxford , 16 Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: Jan A
authors.initials: JA
authors.lastname: Mol
keywords: Franck−Condon blockade; Single-molecule electronics; avalanche transport; electron-vibron coupling; graphene