The photodegradation of polymers and small molecular materials applied in organic optoelectronic devices

This contribution is focused on study of photo-degradation of aseveral photoconductive organic materials such as polymeric (highTg–PPV – block copolymer of derivates of poly(p–phenylene–vinylene) and P3HT – poly(3–hexylthiophene–2,5–diyl) as smallmolecular weight material a derivate of diphenyl–diketopyrrolo–pyrrole – DPP 36 was used. These materials are used forconstruction of optoelectronic devices like organic solar cells,transistors, optical sensors and others. Photo-degradation processeswere studied by optical characterization (UV–VIS spectroscopy,)and by analysis of photographs obtained by means of opticalmicroscope.