Dresden 2011 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 32: Transport and Spectroscopy in Molecular Nanostructures I (related to SYMN, jointly with MO)

CPP 32.7: Vortrag

Mittwoch, 16. März 2011, 15:45–16:00, ZEU 160

Demonstration of an organic photonic gate — •Martti Pärs¹, Christiane Hofmann¹, Peter Bauer², Mukundan Thelakkat², and Jürgen Köhler¹ — ¹Experimental Physics IV, University of Bayreuth, 95440 Bayreuth, Germany — ²Applied Functional Polymers, University of Bayreuth , 95440 Bayreuth, Germany

We demonstrate the function of an organic photonic gate, that consists of a photochromic switch that is covalently linked to two chromophores. As switch we use dithienylcyclopentene (DCP) that can reversibly be converted by light between two bistable states. As chromophores we employ perylene bisimide, whose fluorescence is monitored as a function of the state of the switch. We present results with respect to the modulation depth of the fluorescence, the quantum yield of the device, and its fatigue resistance.