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05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.

News

MUST2022 Conference- a great success!
New scientific highlights- by MUST PIs Wörner, Chergui, and Richardson
FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”
Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science
New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science
International Day of Women and Girls in Science- SSPh asked female scientists about their experiences
New scientific highlight- by MUST PIs Milne, Standfuss and Schertler
EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL
Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis
NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules
#NCCRWomen- NCCR MUST celebrates 50 years women’s right to vote in Switzerland

Characterization and modification of structural and electronic surface properties

Date Mo, 14.04.2014 - Mo, 14.04.2014
Time 16.45
Speaker Meike Stöhr, Zernike Institute for Advanced Materials, University of Groningen, Netherlands
Location ETH Zurich, Hönggerberg Campus, HPF G-6
Program Characterization and modification of structural and electronic surface properties

The interest in studying organic nanostructures on surfaces emerges from their prospective applications in nanoscale electronic or optoelectronic devices, in which the spatially addressable functional units are to be assembled on the molecular level. By making use of molecular recognition processes based on non-covalent interactions, well-ordered 1D and 2D molecular structures can be formed on surfaces. The understanding of the interplay of the underlying intermolecular and molecule substrate interactions is highly important since the resulting molecular structures are based upon these two interactions.
In the first part of my presentation, I will focus – on the basis of perylene derivatives adsorbed on Cu(111) – on supramolecular assemblies based on non-covalent interactions [1]. Through post-annealing of the sample, the intermolecular as well as the molecule substrate interactions can be modified and thereby, the assembly structures can be altered. Through a combination of experimental and theoretical methods, the electronic and structural properties were elucidated. In particular, the interaction of the Cu surface state electrons with an adsorbed porous molecular network was found to change the electronic surface properties.
In the second part of my presentation, I will discuss the possibility to modify graphene´s electronic properties [2] by adsorbing well-ordered 2D molecular networks.

References
[1] J. Lobo-Checa et al., Science 325 (2009) 300; M. Matena et al., Chem. Eur. J. 16 (2010) 2079 ; M. Matena et al., submitted.
[2] S. Gottardi et al., submitted.
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Link Meike Stöhr
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