Suppressing Metal–Molecule Charge Transfer With a Phosphorus Interlayer
Source abstract
Abstract
ABSTRACT Porphyrins are organic molecules that exhibit excellent opto‐electronics properties, making them suitable for a variety of applications. Nevertheless, their functionality strongly depends on the surface onto which they are deposited, and on the interaction between the molecules and the substrate itself, which often leads to an undesired alteration in their electronic properties. In this study, we use a phosphorus interlayer on a Cu(110) surface as a buffer layer for the electronic decoupling of Zn‐tetraphenylporphyrin (ZnTPP) molecules. Using a combination of complementary techniques, such as Near Edge X‐ray Absorption Fine Structure (NEXAFS), X‐ray and Ultraviolet Photoemission Spectroscopy (XPS, UPS) as well as Scanning Tunneling Spectroscopy (STS) techniques, it is shown how the charge transfer from the metal, responsible for quenching the ZnTPP lowest unoccupied molecular level (LUMO) levels, is effectively prevented by the presence of a phosphorus reconstruction in between.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Surface Chemistry and Catalysis · Molecular Junctions and Nanostructures · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics University of Perugia Perugia Italy
Department of Physics CNR‐IOM – Istituto Officina Dei Materiali Perugia Italy
CNR‐IOM – Istituto Officina Dei Materiali Trieste Italy
Nanomaterials and Nanotechnology Research Center (CINN) El Entrego Spain
Donostia International Physics Center San Sebastián Spain
Department of Civil & Environmental Engineering (DICA) University of Perugia Perugia Italy
CNR‐SCITEC Perugia Italy
CIRIAF – Interuniversity Research Centre University of Perugia Perugia Italy
Centro S3 CNR‐Istituto Nanoscienze Modena Italy
Centro de Física de Materiales (CFM‐MPC) CSIC‐UPV/EHU San Sebastián Spain
Funding
Hezkuntza, Hizkuntza Politika Eta Kultura Saila, Eusko Jaurlaritza · Agencia Estatal de Investigación · Ministero dell'Università e della Ricerca
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