Berlin 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HL: Fachverband Halbleiterphysik
HL 54: Organic semiconductors
HL 54.4: Vortrag
Freitag, 16. März 2018, 10:15–10:30, EW 203
Design of high mobility molecular organic semiconductors — Pascal Friederich1, Franz Symalla1, Velimir Meded1, Vadim Rodin2, Christian Sprau1, Florian von Wrochem2, Alexander Colsmann1, Mario Ruben1, and •Wolfgang Wenzel1 — 1Karlsruher Insitut für Technologie , Karlsruhe, Germany — 2Sony Europe Ltd, Stuttgart, Germany
Small-molecule organic semiconductors are used in a wide spectrum of applications, ranging from organic light emitting diodes to organic photovoltaics. A number of factors determine mobility, such as molecular packing, electronic structure, dipole moment and polarizability. Presently, quantitative ab-initio models to assess the influence of these molecule-dependent properties, including the influence of dopants, are lacking. Here, we present a multi-scale model, which provides an accurate prediction of experimental data over ten orders of magnitude in mobility and demonstrate the de novo designg of a novel organic semicodunctor with improved mobility. The availability of first-principles based models to compute key performance characteristics of organic semiconductors may enable in-silico screening of numerous chemical compounds for the development of highly efficient opto-electronic devices.