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DIGITAL.CSIC
Doctoral thesis . 2021 . Peer-reviewed
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Molecular assembly and reactions on surfaces characterized by low-temperature scanning probe techniques

Authors: Barragán, Ana;

Molecular assembly and reactions on surfaces characterized by low-temperature scanning probe techniques

Abstract

[ES]: En esta tesis describo las propiedades estructurales y electrónicas que surgen del ensamblado y las reacciones químicas de moléculas orgánicas en superficies metálicas, usando herramientas de caracterización local. El objetivo es lograr estructuras moleculares, donde diferentes grupos funcionales son integrados con precisión, para obtener redes con alta conductividad eléctrica.El punto de partida de este trabajo es la elección de moléculas prototípicas usadas en electrónica orgánica. Estas moléculas están enriquecidas por átomos de azufre (S) y nitrógeno (N), que determinan sus propiedades electrónicas, y además están funcionalizadas con átomos de bromo (Br), haciéndolas adecuadas para la formación de polímeros mediante la reacción de Ullmann. Además, el azufre proporciona un punto de anclaje fuerte y estable con el sustrato. Por lo tanto, la interacción específica de losátomos de Br y S con el sustrato de soporte puede resultar en interacciones competitivas. De la misma manera, dos sustratos con diferente simetría y propiedades catalíticas han sido usados. Los precursores moleculares investigados se denominan dibromobenzothiadiazole (2Br-BTD) y bromo-mercaptobiphenyl (Br-MBP), y han sido depositados sobre las superficies de Cu(110) y Au(111).Los resultados proporcionados en esta tesis tienen implicaciones importantes en el campo de la electrónica orgánica, y en el desarrollo de futuros nano-dispositivos.

Peer reviewed

Country
Spain
Keywords

physics of polymers, electron transport, physics of organic molecules

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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