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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 23: Organic Photovoltaics I
CPP 23.6: Talk
Tuesday, March 13, 2018, 11:15–11:30, C 243
Phonon-Induced Absorption Line Shapes in Organic Semiconductors — •Michel Panhans1, Johannes Benduhn2, Karl Sebastian Schellhammer1, Koen Vandewal2, and Frank Ortmann1 — 1Center for Advancing Electronics Dresden, TU Dresden — 2Institute for Applied Photophysics, TU Dresden
Quantifying disorder is an important task in organic semiconductor research [1,2] because of its impact on the carrier mobility and device performance. We analyze models of amorphous and crystalline donor-acceptor systems regarding their response to optical excitations. [3] We study the excited-state density of states with varying electronic disorder and electron-phonon interaction and compare our results to absorption measurements on donor-acceptor blends.
[1] D. Venkateshvaran et al. Nature 515, 384 (2014).
[2] K. Vandewal et al. J. Am. Chem. Soc. 139, 1699 (2017).
[3] M. Panhans et al. (in preparation)