Alkauskas, A. and Ramoino, L. and Schintke, S. and von Arx, M. and Baratoff, A. and Guntherodt, H. -J. and Jung, T. A.. (2005) Energy level alignment at metal-octaethylporphyrin interfaces. Journal of Physical Chemistry B, 109 (49). pp. 23558-23563.
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Official URL: https://edoc.unibas.ch/94685/
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Abstract
We studied the electronic structure of copper-octaethylporphyrin (CuEOP) adsorbed on three metal surfaces - Ag(001), Ag(111), and Cu(111)-by means of ultraviolet photoelectron spectroscopy (UPS). The adsorption-induced work function shifts saturate roughly beyond two monolayers. The saturation values are substrate dependent, negative, and range from -1.30 to -0.85 eV. This shift is larger than that for tetraphenylporphyrins. The two highest occupied molecular orbitals (HOMO and HOMO-1) of the organic are clearly resolved in the UPS spectra. The origin of the negative work function shift is discussed.
| Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik |
|---|---|
| UniBasel Contributors: | Jung, Thomas A. |
| Item Type: | Article, refereed |
| Article Subtype: | Research Article |
| Publisher: | American Chemical Society |
| ISSN: | 1520-6106 |
| e-ISSN: | 1520-5207 |
| Note: | Publication type according to Uni Basel Research Database: Journal article |
| Identification Number: |
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| Last Modified: | 24 May 2023 09:24 |
| Deposited On: | 24 May 2023 09:24 |
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