SolarTrap: Plasmonically Tuned Organic Optoelectronics
Hannes Pöhl1, Battulga Munkhbat1, Herwig Heilbrunner2, Thomas Bielz2, Calin Hrelescu1a),
Thomas A. Klar1, Markus C. Scharber2, and Niyazi S. Sariciftci2
1 Institute of Applied Physics, Johannes Kepler University Linz, Altenberger Strasse 69, A-4040 Linz, Austria
2 Linz Institute for Organic Solar Cells (LIOS)/ Institute of Physical Chemistry, Johannes Kepler University Linz, Altenberger Strasse 69, A-4040 Linz, Austria
a)Authors to whom correspondence should be addressed;
Tailoring light manipulation in organic thin films to reasonably improve organic optoelectronics with the aid of plasmonic structures still presents a major challenge and is not yet fully understood. Here, different strategies to manipulate light with plasmonic nanoparticles, nanoresonators, as well as large area hybrid nanostructures are addressed and discussed.
Changes of the local density of optical states by controlling the spatial and spectral position of the hot spots or the coupling of emission to plasmonic or photonic modes leads to remarkable options for the enhanced light trapping in organic thin films, the spectral and directional modification and enhancement of fluorescence and electroluminescence. Further we present possibilities for tuning the localized surface plasmons resonances of nanoparticles for an optimal spectral overlap with different gain materials.