Dresden 2017 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 50: Poster: Organic Electronics and Photovoltaics, Molecular Excitations
CPP 50.3: Poster
Wednesday, March 22, 2017, 18:30–21:00, P3
Imidazo[1,5-a]pyridines as Light Emitting Materials — •Jasmin Martha Herr1,3, Georg Albrecht2,3, Julia Schulze1, Derck Schlettwein2,3, and Richard Göttlich1,3 — 1Justus-Liebig-University Giessen, Institute of Organic Chemistry — 2Justus-Liebig-University Giessen, Institute of Applied Physics — 3Justus-Liebig-University Giessen, Laboratory for Materials Science (LaMa)
Imidazo[1,5-a]pyridines display blue photoluminescence, tunable by introducing functional groups, and can be used as ligands to form coordination complexes. The goal of this work is the preparation and electro-optical characterization of imidazo[1,5-a]pyridine solutions and thin films as a prerequisite to their further investigation as stable blue-light emitting building blocks for OLEDs. We synthesized 1,3-disubstituted imidazo[1,5-a]pyridines with different substituents. The influence of these substituents on the electro-optical properties was measured in solution via UV-Vis spectroscopy, fluorescence spectroscopy and cyclic voltammetry as part of our research. For the application of imidazo[1,5-a]pyridines as emitting OLED building blocks, the electro-optical properties of the material in solid state have to be characterized. Therefore, we used spin-coating to fabricate thin films on different substrates and with different solvents.