Dresden 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 23: Interfaces and Thin Films III
CPP 23.3: Vortrag
Dienstag, 1. April 2014, 15:30–15:45, ZEU 114
Role of the external field on solidification process of conjugated polymer and oligomer systems — Bakirov Artem1, Shcherbina Maxim1, Grodd Linda2, Mikayelyan Eduard2, Fratoddi Ilaria3, Venditti Iole3, Russo Maria Vittoria3, Chvalun Sergei1, and •Grigorian Souren2 — 1Institute of Synthetic Polymeric Materials RAS, Moscow, Russia — 2Department of Physics, University of Siegen, Germany — 3Department of Chemistry and Center for Nanotechnology for Engineering (CNIS), University of Rome Sapienza, Rome, Italy
Conjugated polymers and oligomers have received an increased attention in recent years being promising materials for organic electronics. Recently many fabrication protocols have been developed in order to enhance structural properties which in many cases have a strong influence on final device performance. We propose a non-contact way to modify structural properties during organic film solidification under external field. First a series of in situ x-ray studies using grazing incidence geometry were realized under external electric field up to 3 keV. Here a macroscopic flow is among different experimental constraints which hinders local order. Alternatively, in situ studies were performed under external magnetic field of 1.2 T. In this case a pronounced anisotropy induced by external magnetic field was found for oligomers and polythiophene-gold nanoparticle blends.
This work was supported by BMBF (project Nr 05K10PSC).