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Abstract

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  2. Abstract
  3. What do you consider to be the challenging developments in this field?
  4. How did this collaboration start?
  5. What’s coming next?

Invited for this month’s cover are the three collaborating groups from the University of Stuttgart and the Fraunhofer Institute for Applied Polymer Research in Potsdam, both from Germany as well as the University of Windsor, Canada. The cover picture shows the shift of frontier orbital energies and symmetries upon excitation with light for three different chromophore lengths. Read the full text of the article at 10.1002/cplu.201300308


What do you consider to be the challenging developments in this field?

  1. Top of page
  2. Abstract
  3. What do you consider to be the challenging developments in this field?
  4. How did this collaboration start?
  5. What’s coming next?

123456789101112The 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.

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Scheme 1. Katharina Christina Kreß

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Scheme 2. Dr. Thomas Fischer

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Scheme 3. Dr. Joachim Stumpe

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Scheme 4. Dr. Wolfgang Frey

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Scheme 5. Dr. Melanie Raith

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Scheme 6. Omid Beiraghi

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Scheme 7. Prof. Dr. S. Holger Eichhorn

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Scheme 8. Dr. Stefan Tussetschläger

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Scheme 9. Prof. Dr. Sabine Laschat

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How did this collaboration start?

  1. Top of page
  2. Abstract
  3. What do you consider to be the challenging developments in this field?
  4. How did this collaboration start?
  5. What’s coming next?

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?

  1. Top of page
  2. Abstract
  3. What do you consider to be the challenging developments in this field?
  4. How did this collaboration start?
  5. 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.

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