Search

link to homepage

Peter Grünberg Institute / Institute of Complex Systems
(leer)

Navigation and service


Gap size dependent transition from direct tunneling to field emission in single molecule junctions

Article appeared in: Chemical Communications 2011, 47, 4760–4762; DOI: 10.1039/c1cc10144g

Dong Xiang, Yi Zhang, Feliks Pyatkov, Andreas Offenhäusser and Dirk Mayer


Published: March 2011

The gap size dependent shift of the transition voltage to lower values indicates an enhancement of field emission for narrow single molecule junctions.The gap size dependent shift of the transition voltage to lower values indicates an enhancement of field emission for narrow single molecule junctions.

Abstract:

I/V characteristics recorded in mechanically controllable break junctions revealed that field emission transport is enhanced in single molecule junctions as the gap size between two nanoelectrodes is reduced. This observation indicates that Fowler–Nordheim tunneling occurs not only for intermolecular but also for intramolecular electron transport driven by a reduced energy barrier at short tunneling distances.


Servicemeu

Homepage