kocic, N. and Weiderer, P. and Keller, S. and Decurtins, S. and Liu, S-X. and Repp, J. (2015) Periodic Charging of Individual Molecules Coupled to the Motion of an Atomic Force Microscopy Tip. NANO LETTERS, 15 (7). pp. 4406-4411. ISSN 1530-6984, 1530-6992
Full text not available from this repository. (Request a copy)Abstract
Individual molecules at the edges of self-assembled islands grown on Ag(111) can be deliberately switched hi their Charge state with the electric field from a scanning-probe tip. Close to the threshold voltage for a charge state transition, periodic switching of the charge is directly driven by the cantilever motion in frequency-modulated atomic force microscopy (AFM), as can be deduced from the signature in the measured frequency shift. In this regime, the integrated frequency shift yields the tip sample force that is due to a single additional electron. Further, the signature of the dynamic charging response provides information on the electronic coupling of the molecule to the substrate. In analogy to previous experiments on quantum dots, this may also be used in the future to access excited state properties of single molecules from AFM experiments.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM DOTS; ELECTROSTATIC FORCE; SINGLE; STATE; SPECTROSCOPY; RESOLUTION; ENERGY; Single-electron tunneling; single molecule; atomic force microscopy; charge sensing; level broadening |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Jascha Repp |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Jul 2019 08:55 |
| Last Modified: | 08 Jul 2019 08:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5249 |
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