Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 21: Posters 4: Novelties in Molecular Physics
MO 21.4: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Ultrafast studies on luminescent dinuclear copper(I) complexes in solid and liquid phase — •Florian Bäppler1, Patrick Singer1, Fabian Rupp1, Florian Liedy1, Benedikt Burgard1, Daniel Volz2, Stefan Bräse3, and Rolf Diller1 — 1Dept. of Physics, TU Kaiserslautern, 67663 Kaiserslautern, Germany — 2cynora GmbH, 76646 Bruchsal, Germany — 3Inst. of Organic Chemistry, KIT, 76131 Karlsruhe, Germany
Luminescent dinuclear copper complexes are very promising candidates as emitters in organic light-emitting diodes (OLEDs), as they combine high efficiencies, a widely tuneable emission maximum and low cost. However, further investigation of the primary photophysics and photochemistry is needed to fully understand important effects such as quenching mechanisms, especially in solid state. We present the first femtosecond (fs) transient reflectivity measurements on a dinuclear copper(I) complex Cu2I2MePyrPHOS[1] in solid state, under varied conditions, such as temperature and sample environment (air, vacuum), alongside with fs-transient absorption measurements in solution [2]. A comparison of the results reveals both similarities and differences between the photophysics in solid and liquid state which are critically discussed.
[1] D. Volz, D. M. Zink, T. Bocksrocker, J. Friedrichs, M. Nieger, T. Baumann, U. Lemmer, S. Bräse, Chem. Mater. 2013, 25, 3414-3426
[2] D. Imanbaew , Y. Nosenko , C. Kerner, K. Chevalier, F. Rupp, C. Riehn, W.R. Thiel, R. Diller, Chemical Physics 442 (2014) 53-61