11. June 2024, 16:00 until 17:00

Martin Sterrer, Universität Graz, Institute of Physics

Seminar

Assembly and reactions of organic semiconductors on oxide thin film surfaces

 

Tailoring the properties of molecules of the tetrapyrrole family (porphyrins, phthalocyanines) by metalation and functionalization is potentially useful for targeting specific applications, e.g., in the fields of catalysis, sensing, optoelectronics, and magnetism. To this end, on-surface preparation strategies, mostly carried out on metal surfaces, for variously functionalized porphyrins and phthalocyanines have been developed, that provided detailed insight into their hierarchical organization and allowed their structural, electronic, and chemical properties to be studied in detail. We have extended this approach to porphyrins and phthalocyanines deposited on ultrathin metal oxide films. In this talk, we will give an overview of our recent studies in this direction, which were specifically aimed at revealing the assembly, energy level alignment, and metalation of these molecules, as well as the control of interfacial charge transfer, on ultrathin MgO(001) films, monolayer FeO(111) and bulk-like Fe3O4(111) films, and monolayer MoO3 films. After providing details about the growth and properties of the studied oxide thin film systems, we will present strategies to control the level alignment and charge state of the molecules by tuning the chemical and electronic properties of the oxide films.

Calendar entry

Event location

SEM.R. DB gelb 05 B
1040 Wien
Wiedner Hauptstraße 8-10/E134

 

Organiser

IAP
Manuela Marik
marik@iap.tuwien.ac.at

 

Public

Yes

 

Entrance fee

No

 

Registration required

No