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What do you consider to be the challenging developments in this field? The development of novel materials for organic light‐emitting diodes and photovoltaic devices is currently one of the hottest topics in chemistry and materials science. Many of these materials, however, will never have the chance to be implemented into a practical device owing to poor long term stability, low efficiency, and poor processability. Thus, extensive interdisciplinary basic research is necessary to understand and finally overcome these fundamental limitations. 1 Scheme Katharina Christina Kreß 2 Scheme Dr. Thomas Fischer 3 Scheme Dr. Joachim Stumpe 4 Scheme Dr. Wolfgang Frey 5 Scheme Dr. Melanie Raith 6 Scheme Omid Beiraghi 7 Scheme Prof. Dr. S. Holger Eichhorn 8 Scheme Dr. Stefan Tussetschläger 9 Scheme Prof. Dr. Sabine Laschat 10 Scheme 11 Scheme 12 Scheme How did this collaboration start? This project was initiated by Joachim Stumpe and his team at the Fraunhofer Institute IAP, induced by their strong interest and long‐standing expertise in industrially relevant functional dyes, particularly merocyanine compounds, and optical technologies. Sabine Laschat and Katharina Kreß at the University of Stuttgart developed synthetic methodologies to establish a fundamental library of merocyanines, whose structural properties both in the solid state and in solution were studied by Wolfgang Frey and Melanie Raith, respectively. Furthermore, detailed computational studies were carried out by Holger Eichhorn’s group in Canada, which gave HOMO/LUMO energy gaps and thus led to ideas in to which direction applications can be found for these dyes. Moreover, the aforementioned computational studies suggested which structural parameters of these derivatives could be changed to optimize the application scope. What’s coming next? We would like to drive our computational chemistry expertise towards the exploration of new promising derivatives. From there, synthetic strategies can be developed to efficiently expand the existing library of merocyanines that show desired characteristics.
ChemPlusChem – Wiley
Published: Feb 1, 2014
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