Wet-chemically prepared porphyrin layers on rutile tio2(110)

Wechsler D, Carolina Fernandez C, Köbl J, Augustin LM, Stumm C, Jux N, Steinrück HP, Williams FJ, Lytken O (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Molecules MDPI

Book Volume: 26

Article Number: 2871

Journal Issue: 10

DOI: 10.3390/molecules26102871

Abstract

Porphyrins are large organic molecules that are interesting for different applications, such as photovoltaic cells, gas sensors, or in catalysis. For many of these applications, the interactions between adsorbed molecules and surfaces play a crucial role. Studies of porphyrins on surfaces typically fall into one of two groups: (1) evaporation onto well-defined single-crystal surfaces under well-controlled ultrahigh vacuum conditions or (2) more application-oriented wet chemical deposition onto less well-defined high surface area surfaces under ambient conditions. In this study, we will investigate the wet chemical deposition of 5-(monocarboxyphenyl)-10,15,20-triphenylporphyrin (MCTPP) on well-defined rutile TiO2 (110) single crystals under ambient conditions. Prior to deposition, the TiO2(110) crystals were also cleaned wet-chemically under ambient conditions, meaning none of the preparation steps were done in ultrahigh vacuum. However, after each preparation step, the surfaces were characterized in ultrahigh vacuum with X-ray photoelectron spectroscopy (XPS) and the result was compared with porphyrin layers prepared in ultrahigh vacuum (UHV) by evaporation. The differences of both preparations when exposed to zinc ion solutions will also be discussed.

Authors with CRIS profile

Daniel Wechsler Lehrstuhl für Physikalische Chemie II Julia Köbl Lehrstuhl für Physikalische Chemie II Lisa-Marie Augustin Lehrstuhl für Theoretische Chemie Corinna Stumm Lehrstuhl für Katalytische Grenzflächenforschung Norbert Jux Naturwissenschaftliche Fakultät Hans-Peter Steinrück Lehrstuhl für Physikalische Chemie II Ole Lytken Lehrstuhl für Physikalische Chemie II

Involved external institutions

Universidad de Buenos Aires (UBA) / University of Buenos Aires AR Argentina (AR)

How to cite

APA:

Wechsler, D., Carolina Fernandez, C., Köbl, J., Augustin, L.-M., Stumm, C., Jux, N.,... Lytken, O. (2021). Wet-chemically prepared porphyrin layers on rutile tio2(110). Molecules, 26(10). https://dx.doi.org/10.3390/molecules26102871

MLA:

Wechsler, Daniel, et al. "Wet-chemically prepared porphyrin layers on rutile tio2(110)." Molecules 26.10 (2021).

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