Autor según el artículo: Mohammed MSG; Colazzo L; Robles R; Dorel R; Echavarren AM; Lorente N; de Oteyza DG
Departamento: Química Analítica i Química Orgànica
Autor/es de la URV: ECHAVARREN PABLOS, ANTONIO
Palabras clave: On-surface synthesis Heptacene Graphene nanoribbons Charge-transfer Barrier Acenes
Resumen: © 2020, The Author(s). On-surface synthesis is becoming an increasingly popular approach to obtain new organic materials. In this context, metallic surfaces are the most commonly used substrates. However, their hybridization with the adsorbates often hinder a proper characterization of the molecule’s intrinsic electronic and magnetic properties. Here we report a route to electronically decouple molecules from their supporting substrates. In particular, we have used a Ag(001) substrate and hydrogenated heptacene molecules, in which the longest conjugated segment determining its frontier molecular orbitals amounts to five consecutive rings. The non-planarity that sp3 atoms impose on the carbon backbone results in electronically decoupled molecules, as demonstrated by scanning tunneling spectroscopy measurements. The charging resonances of the latter imply the presence of double tunneling barriers. We further explain the existing relation between the charging resonance energy and their contrast, as well as with the presence or absence of additional Kondo resonances.
Áreas temáticas: Physics, multidisciplinary Physics and astronomy (miscellaneous) Physics and astronomy (all) General physics and astronomy Ciencias sociales
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: antoniomaria.echavarren@urv.cat
Identificador del autor: 0000-0002-6418-7930
Fecha de alta del registro: 2023-05-13
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.nature.com/articles/s42005-020-00425-y
Referencia al articulo segun fuente origial: Communications Physics. 3 (1):
Referencia de l'ítem segons les normes APA: Mohammed MSG; Colazzo L; Robles R; Dorel R; Echavarren AM; Lorente N; de Oteyza DG (2020). Electronic decoupling of polyacenes from the underlying metal substrate by sp 3 carbon atoms. Communications Physics, 3(1), -. DOI: 10.1038/s42005-020-00425-y
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1038/s42005-020-00425-y
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2020
Tipo de publicación: Journal Publications
Repositori URV