Dresden 2017 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 36: Organic Semiconductors (joined session with CPP, DS)
HL 36.13: Talk
Tuesday, March 21, 2017, 13:00–13:15, POT 251
Three-dimensional photonic confinement of imprinted pillars in an organic Tamm-plasmon structure — •Marco Dusel1, Simon Betzold1, Christof P. Dietrich1 und Sven Höfling1,2 — 1Technische Physik, Julius-Maximilians-Unversität Würzburg, Am Hubland, 97074 Würzburg — 2SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, UK
The fluorescence of organic solids at room temperature is governed by the radiative decay of Frenkel excitons that are characterized by large exciton binding energies and short Bohr radii compared to inorganic semiconductors. Due to their very large oscillator strength, organic materials further strongly interact with light, in particular in microcavities.
So far, photonic confinement within the cavity plane has mainly been achieved by tailoring the dielectric part of the cavity. Here, we present a novel technology that enables 3D photonic confinement within the active organic layer of a Tamm-plasmon structure (metal-clad cavity) by laterally imprinting pillars. The fabricated pillars have diameters ranging from 7 to 20 µm and heights between 2 and 4 µm. The developed technology enables far more complicated photonic potentials including coupled pillars, chains and lattices.