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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster Session IV

CPP 46.38: Poster

Wednesday, March 14, 2018, 11:00–13:00, Poster A

Influence of PMMA protection layers on Ozone degradation of P3HT and MDMO-PPV — •Andreas Frueh¹, Hans-Joachim Egelhaaf², Heiko Peisert¹, and Thomas Chassé¹ — ¹Universität Tübingen, IPTC, Auf der Morgenstelle 18 D-72076 Tübingen, Germany — ²ZAE Bayern, Auf AEG, Bau 16, 1. OG, Fürther Str. 250, D-90429 Nürnberg

The fast degradation of organic polymer materials remains a major problem in organic electronics and optoelectronic devices. We study the influence of PMMA cover layers on the photo oxidation and the degradation by ozone of two prototype polymers: poly(3-hexylthiophene) (P3HT) and Poly[2-methoxy-5-(3*,7*-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) using optical spectroscopies. PMMA films with layer thicknesses of for example 65 nm slow the ozone-degradation down by a factor of 2600. PMMA films do not provide protection against photo oxidation at AM 1.5 in dry or humidified synthetic air.