Synthesis and luminescent properties of Br-substituted poly(N-vinylcarbazoles).

The synthesis of the polymer group containing carbazole as an element of th e structure that generates the electroluminescence was performed. Studies w ere focused on molecular and electronic structures and transport properties . The determined physical properties of the polymers suggest that the mater ials can be applied in optoelectronic devices. The studies concerning elect rooptic properties, photoluminescent and electroluminescent spectrum for th e LED-type structure were performed on the following polymers: PVK, P3RrVK aid P3,6BrVK. Photoluminescent spectra in the temperature range 80 similar to 300 K were obtained. Halogens as electronegative atoms strongly Influenc e the electron structure of a carbazole group modifying its UV spectrum, ph otoluminescence properties and the electrolumincscence.