Single-molecule conductance of neutral closed-shell and open- shell diradical indenofluorenes
Organic diradicals are highly promising candidates as future components in molecular electronic and spintronic devices because of their low spin−orbit coupling. To advance toward final circuit realizations, a thorough knowledge of the behavior of diradicals within a single-molecule junction framewor...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/112926 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/112926 |
| Access Level: | acceso abierto |
| Palabra clave: | 544 Single-Molecule conductance Open Open- Shell Diradical Indenofluorenes Scanning tunneling break junction Density functional theory Nonequilibrium Green’s function Química física (Química) 2307 Química Física |
| Sumario: | Organic diradicals are highly promising candidates as future components in molecular electronic and spintronic devices because of their low spin−orbit coupling. To advance toward final circuit realizations, a thorough knowledge of the behavior of diradicals within a single-molecule junction framework is imperative. In this work, we have measured for the first time the single-molecule conductance of a neutral open-shell diradical compound, a [2,1-b] isomer of indenofluorene (IF). Our results reveal that the conductance of the [2,1-b] isomer is about 1 order of magnitude higher than that of the corresponding closed-shell regioisomer [1,2-b] IF. This is significant, as it fundamentally demonstrates the possibility of forming stable single-molecule junctions using neutral diradical compounds which are also highly conducting. This opens up a new approach to the development of externally addressable spintronic devices operable at room temperature |
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