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Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires
On-surface covalent self-assembly of organic molecules is a very promising bottom–up approach for producing atomically controlled nanostructures. Due to their highly tuneable properties, these structures may be used as building blocks in electronic carbon-based molecular devices. Following this idea...
Autores principales: | , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4725758/ https://www.ncbi.nlm.nih.gov/pubmed/26725974 http://dx.doi.org/10.1038/ncomms10235 |
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author | Vasseur, Guillaume Fagot-Revurat, Yannick Sicot, Muriel Kierren, Bertrand Moreau, Luc Malterre, Daniel Cardenas, Luis Galeotti, Gianluca Lipton-Duffin, Josh Rosei, Federico Di Giovannantonio, Marco Contini, Giorgio Le Fèvre, Patrick Bertran, François Liang, Liangbo Meunier, Vincent Perepichka, Dmitrii F. |
author_facet | Vasseur, Guillaume Fagot-Revurat, Yannick Sicot, Muriel Kierren, Bertrand Moreau, Luc Malterre, Daniel Cardenas, Luis Galeotti, Gianluca Lipton-Duffin, Josh Rosei, Federico Di Giovannantonio, Marco Contini, Giorgio Le Fèvre, Patrick Bertran, François Liang, Liangbo Meunier, Vincent Perepichka, Dmitrii F. |
author_sort | Vasseur, Guillaume |
collection | PubMed |
description | On-surface covalent self-assembly of organic molecules is a very promising bottom–up approach for producing atomically controlled nanostructures. Due to their highly tuneable properties, these structures may be used as building blocks in electronic carbon-based molecular devices. Following this idea, here we report on the electronic structure of an ordered array of poly(para-phenylene) nanowires produced by surface-catalysed dehalogenative reaction. By scanning tunnelling spectroscopy we follow the quantization of unoccupied molecular states as a function of oligomer length, with Fermi level crossing observed for long chains. Angle-resolved photoelectron spectroscopy reveals a quasi-1D valence band as well as a direct gap of 1.15 eV, as the conduction band is partially filled through adsorption on the surface. Tight-binding modelling and ab initio density functional theory calculations lead to a full description of the band structure, including the gap size and charge transfer mechanisms, highlighting a strong substrate–molecule interaction that drives the system into a metallic behaviour. |
format | Online Article Text |
id | pubmed-4725758 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47257582017-07-21 Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires Vasseur, Guillaume Fagot-Revurat, Yannick Sicot, Muriel Kierren, Bertrand Moreau, Luc Malterre, Daniel Cardenas, Luis Galeotti, Gianluca Lipton-Duffin, Josh Rosei, Federico Di Giovannantonio, Marco Contini, Giorgio Le Fèvre, Patrick Bertran, François Liang, Liangbo Meunier, Vincent Perepichka, Dmitrii F. Nat Commun Article On-surface covalent self-assembly of organic molecules is a very promising bottom–up approach for producing atomically controlled nanostructures. Due to their highly tuneable properties, these structures may be used as building blocks in electronic carbon-based molecular devices. Following this idea, here we report on the electronic structure of an ordered array of poly(para-phenylene) nanowires produced by surface-catalysed dehalogenative reaction. By scanning tunnelling spectroscopy we follow the quantization of unoccupied molecular states as a function of oligomer length, with Fermi level crossing observed for long chains. Angle-resolved photoelectron spectroscopy reveals a quasi-1D valence band as well as a direct gap of 1.15 eV, as the conduction band is partially filled through adsorption on the surface. Tight-binding modelling and ab initio density functional theory calculations lead to a full description of the band structure, including the gap size and charge transfer mechanisms, highlighting a strong substrate–molecule interaction that drives the system into a metallic behaviour. Nature Publishing Group 2016-01-04 /pmc/articles/PMC4725758/ /pubmed/26725974 http://dx.doi.org/10.1038/ncomms10235 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Vasseur, Guillaume Fagot-Revurat, Yannick Sicot, Muriel Kierren, Bertrand Moreau, Luc Malterre, Daniel Cardenas, Luis Galeotti, Gianluca Lipton-Duffin, Josh Rosei, Federico Di Giovannantonio, Marco Contini, Giorgio Le Fèvre, Patrick Bertran, François Liang, Liangbo Meunier, Vincent Perepichka, Dmitrii F. Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title | Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title_full | Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title_fullStr | Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title_full_unstemmed | Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title_short | Quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
title_sort | quasi one-dimensional band dispersion and surface metallization in long-range ordered polymeric wires |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4725758/ https://www.ncbi.nlm.nih.gov/pubmed/26725974 http://dx.doi.org/10.1038/ncomms10235 |
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