Structure and Electronic Properties at Molecular Level of Organic Structures

by Rogger P. Palacios Rivera, Physical Chemistry of Surfaces and Interfaces (SURFACES) group, ICMAB-CSIC

Date: Wednesday, 27 January 2021
Time: 11:30 am
Venue: Online session from the ICMAB Meeting Room. Register here to attend the Defense by Zoom. 

Abstract: The structural and electronic properties of the organic-organic (donor/acceptor) and organic-metal interfaces are of vital importance for the efficient operation of electronic devices based on organic materials. One of the challenges is to know the molecular-scale details of the interfaces that influence the electronic properties of the system, as modifying the surface work function or favouring the charge transfer at both interfaces. This knowledge is crucial for optimizing devices with efficient charge transport to the electrodes and subsequent charge collection.

For this reason, it is necessary to use experimental methodologies such as combined STM/FM-AFM microscopy in UHV and complemented by XPS/UPS and NEXAFS spectroscopy measurements, which allow investigating, on a molecular scale, the degree of involvement of chemical and structural factors in the generation of electric charge and in the collection processes in the electrodes.

This PhD Thesis Defense will be held in Spanish. 

Supervisors:

• Carmen Ocal, SURFACES group, ICMAB
• Esther Barrena, SURFACES group, ICMAB

PhD Committee:

• President: Carlos Escudero Rodríguez, CELLS-ALBA (Alba Synchrotron Light Source), Spain
• Secretary: Arántzazu González Campo, Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Spain
• Vocal: Dimas García de Oteyza Feldermann, Donostia International Physics Center, Spain

University: Universitat Autònoma de Barcelona (UAB)
PhD Programme: Materials Science