Observation of molecular orbital gating
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- 1 December 2009
- journal article
- Published by Springer Science and Business Media LLC in Nature
- Vol. 462 (7276), 1039-1043
- https://doi.org/10.1038/nature08639
Abstract
The control of charge transport in an active electronic device depends intimately on the modulation of the internal charge density by an external node. For example, a field-effect transistor relies on the gated electrostatic modulation of the channel charge produced by changing the relative position of the conduction and valence bands with respect to the electrodes. In molecular-scale devices, a longstanding challenge has been to create a true three-terminal device that operates in this manner (that is, by modifying orbital energy). Here we report the observation of such a solid-state molecular device, in which transport current is directly modulated by an external gate voltage. Resonance-enhanced coupling to the nearest molecular orbital is revealed by electron tunnelling spectroscopy, demonstrating direct molecular orbital gating in an electronic device. Our findings demonstrate that true molecular transistors can be created, and so enhance the prospects for molecularly engineered electronic devices.Keywords
This publication has 31 references indexed in Scilit:
- Gate coupling to nanoscale electronicsPhysical Review B, 2009
- Single Molecule Electronics: Increasing Dynamic Range and Switching Speed Using Cross-Conjugated SpeciesJournal of the American Chemical Society, 2008
- Theoretical study of the lineshape of inelastic electron tunneling spectroscopyPhysical Review B, 2008
- Origin of Discrepancies in Inelastic Electron Tunneling Spectra of Molecular JunctionsPhysical Review Letters, 2007
- Chemical identification and manipulation of molecules by vibrational excitation via inelastic tunneling process with scanning tunneling microscopyProgress in Surface Science, 2005
- Gating of a Molecular Transistor: Electrostatic and ConformationalNano Letters, 2004
- Coulomb blockade and the Kondo effect in single-atom transistorsNature, 2002
- Kondo resonance in a single-molecule transistorNature, 2002
- Conductance of a Molecular JunctionScience, 1997
- Inelastic electron tunneling from a metal tip: The contribution from resonant processesPhysical Review Letters, 1987