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Título: | Tuning the carrier injection barrier of hybrid metal–organic interfaces on rare earth-gold surface compounds |
Autor: | Castrillo-Bodero, Rodrigo CSIC ORCID; Blanco-Rey, María CSIC ORCID; Ali, Khadiza CSIC ORCID; Ortega, J. Enrique CSIC ORCID; Schiller, Frederik CSIC ORCID; Fernández, Laura CSIC ORCID | Fecha de publicación: | 2023 | Editor: | Royal Society of Chemistry (UK) | Citación: | Nanoscale 15(8): 4090-4100 (2023) | Resumen: | Magnetic hybrid metal–organic interfaces possess a great potential in areas such as organic spintronics and quantum information processing. However, tuning their carrier injection barriers on-demand is fundamental for the implementation in technological devices. We have prepared hybrid metal–organic interfaces by the adsorption of copper phthalocyanine CuPc on REAu2 surfaces (RE = Gd, Ho and Yb) and studied their growth, electrostatics and electronic structure. CuPc exhibits a long-range commensurability and a vacuum level pinning of the molecular energy levels. We observe a significant effect of the RE valence of the substrate on the carrier injection barrier of the hybrid metal–organic interface. CuPc adsorbed on trivalent RE-based surfaces (HoAu2 and GdAu2) exhibits molecular level energies that may allow injection carriers significantly closer to an ambipolar injection behavior than in the divalent case (YbAu2). | Versión del editor: | https://doi.org/10.1039/D2NR06440E | URI: | http://hdl.handle.net/10261/303388 | DOI: | 10.1039/D2NR06440E | E-ISSN: | 2040-3372 |
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