Redox-Dependent Franck–Condon Blockade and Avalanche Transport in a Graphene–Fullerene Single-Molecule Transistor

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• 作者：Chit Siong Lau ; Hatef Sadeghi ; Gregory Rogers ; Sara Sangtarash ; Panagiotis Dallas ; Kyriakos Porfyrakis ; Jamie Warner ; Colin J. Lambert ; G. Andrew D. Briggs ; Jan A. Mol
• 刊名：Nano Letters
• 出版年：2016
• 出版时间：January 13, 2016
• 年：2016
• 卷：16
• 期：1
• 页码：170-176
• 全文大小：495K
• ISSN：1530-6992

文摘

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.