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FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength

Interface properties of iron phthalocyanine (FePc) and perfluorinated iron phthalocyanine (FePcF(16)) on rutile TiO(2)(100) and TiO(2)(110) surfaces were studied using X-ray photoemission spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and low-energy electron diffraction (LEED). It is demon...

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Autores principales: Karstens, Reimer, Glaser, Mathias, Belser, Axel, Balle, David, Polek, Małgorzata, Ovsyannikov, Ruslan, Giangrisostomi, Erika, Chassé, Thomas, Peisert, Heiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943671/
https://www.ncbi.nlm.nih.gov/pubmed/31847299
http://dx.doi.org/10.3390/molecules24244579
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author Karstens, Reimer
Glaser, Mathias
Belser, Axel
Balle, David
Polek, Małgorzata
Ovsyannikov, Ruslan
Giangrisostomi, Erika
Chassé, Thomas
Peisert, Heiko
author_facet Karstens, Reimer
Glaser, Mathias
Belser, Axel
Balle, David
Polek, Małgorzata
Ovsyannikov, Ruslan
Giangrisostomi, Erika
Chassé, Thomas
Peisert, Heiko
author_sort Karstens, Reimer
collection PubMed
description Interface properties of iron phthalocyanine (FePc) and perfluorinated iron phthalocyanine (FePcF(16)) on rutile TiO(2)(100) and TiO(2)(110) surfaces were studied using X-ray photoemission spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and low-energy electron diffraction (LEED). It is demonstrated that the interaction strength at the interfaces is considerably affected by the detailed preparation procedure. Weak interactions were observed for all studied interfaces between FePc or FePcF(16) and rutile, as long as the substrate was exposed to oxygen during the annealing steps of the preparation procedure. The absence of oxygen in the last annealing step only had almost no influence on interface properties. In contrast, repeated substrate cleaning cycles performed in the absence of oxygen resulted in a more reactive, defect-rich substrate surface. On such reactive surfaces, stronger interactions were observed, including the cleavage of some C–F bonds of FePcF(16).
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spelling pubmed-69436712020-01-10 FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength Karstens, Reimer Glaser, Mathias Belser, Axel Balle, David Polek, Małgorzata Ovsyannikov, Ruslan Giangrisostomi, Erika Chassé, Thomas Peisert, Heiko Molecules Article Interface properties of iron phthalocyanine (FePc) and perfluorinated iron phthalocyanine (FePcF(16)) on rutile TiO(2)(100) and TiO(2)(110) surfaces were studied using X-ray photoemission spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and low-energy electron diffraction (LEED). It is demonstrated that the interaction strength at the interfaces is considerably affected by the detailed preparation procedure. Weak interactions were observed for all studied interfaces between FePc or FePcF(16) and rutile, as long as the substrate was exposed to oxygen during the annealing steps of the preparation procedure. The absence of oxygen in the last annealing step only had almost no influence on interface properties. In contrast, repeated substrate cleaning cycles performed in the absence of oxygen resulted in a more reactive, defect-rich substrate surface. On such reactive surfaces, stronger interactions were observed, including the cleavage of some C–F bonds of FePcF(16). MDPI 2019-12-13 /pmc/articles/PMC6943671/ /pubmed/31847299 http://dx.doi.org/10.3390/molecules24244579 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Karstens, Reimer
Glaser, Mathias
Belser, Axel
Balle, David
Polek, Małgorzata
Ovsyannikov, Ruslan
Giangrisostomi, Erika
Chassé, Thomas
Peisert, Heiko
FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title_full FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title_fullStr FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title_full_unstemmed FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title_short FePc and FePcF(16) on Rutile TiO(2)(110) and (100): Influence of the Substrate Preparation on the Interaction Strength
title_sort fepc and fepcf(16) on rutile tio(2)(110) and (100): influence of the substrate preparation on the interaction strength
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943671/
https://www.ncbi.nlm.nih.gov/pubmed/31847299
http://dx.doi.org/10.3390/molecules24244579
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