Redox-Dependent Franck–Condon Blockade and Avalanche Transport in a Graphene–Fullerene Single-Molecule Transistor
Author(s):
Chit Siong Lau, Hatef Sadeghi, Gregory Rogers, Sara Sangtarash, Panagiotis Dallas,
Kyriakos Porfyrakis, Jamie Warner, Colin J. Lambert, Andrew D. Briggs, Jan A. Mol
Journal:
Nano Letters
Year:
2016
Volume:
16
Pages
170-176
DOI:
10.1021/acs.nanolett.5b03434
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.