Berlin 2012 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 24: Poster: Organic Semiconductors
CPP 24.14: Poster
Mittwoch, 28. März 2012, 11:00–13:00, Poster A
Comparing the device performance of organic light-emitting diodes processed from solution — •Benedikt Stender1, Maximilian Nothaft2, Jörg Wrachtrup2, and Jens Pflaum1,3 — 1Experimental Physics VI, Julius-Maximilian-University of Würzburg, D-97074 Würzburg — 23rd Physics Institute and Research Center SCoPE, University of Stuttgart, D-70550 Stuttgart — 3ZAE Bayern, D-97074 Würzburg
The feasibility of inkjet-printing offers great advantageous in terms of reduced recombination losses and controlled positioning of solution processed organic light-emitting-diodes (OLEDs). However, due to inherent effects of droplet formation and the sensitivity on printing conditions, it still remains challenging to obtain films of similar quality as from spin-coating. For this purpose, the device performance of poly(para-phenylene-vinylene) OLEDs prepared by spin-casting and inkjet printing is compared with respect to structural and opto-electronic characteristics. As we will demonstrate, by choosing suited sets of preparation parameters, inkjet printed PPV-OLEDs of similar performance can be achieved, thereby paving the way towards innovative devices based on local doping of the emission layer with single molecules.