Coexisting Charge States in a Unary Organic Monolayer Film on a Metal
Source abstract
Abstract
The electronic and geometric structures of tetracene films on Ag(110) and Cu(110) have been studied with photoemission tomography and compared to that of pentacene. Despite similar energy level alignment of the two oligoacenes on these surfaces revealed by conventional ultraviolet photoelectron spectroscopy, the momentum-space resolved photoemission tomography reveals a significant difference in both structural and electronic properties of tetracene and pentacene films. Particularly, the saturated monolayer of tetracene on Ag(110) is found to consist of two molecular species that, despite having the same orientation, are electronically very different-while one molecule remains neutral, another is charged because of electron donation from the substrate.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Molecular Junctions and Nanostructures · Spectroscopy and Quantum Chemical Studies · Quantum and electron transport phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
Jülich Aachen Research Alliance (JARA)−Fundamentals of Future Information Technology, 52425 Jülich, Germany
Experimental Physics IV A, RWTH Aachen University, 52074 Aachen, Germany
Institute of Physics, University of Graz, NAWI Graz, 8010 Graz, Austria
Peter Grünberg Institut (PGI-6), Forschungszentrum Jülich, 52425 Jülich, Germany
Funding
Austrian Science Fund · Deutsche Forschungsgemeinschaft
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