Aarhus University Seal / Aarhus Universitets segl

Distinguished iNANO Lecture: Organic Molecules on Insulating Surfaces: From Self-Assembly to On-Surface Synthesis

Professor Angelika Kühnle, Institute of Physical Chemistry, University Mainz, Mainz, Germany

Info about event

Time

Friday 15 August 2014,  at 10:15 - 11:00

Location

The auditorium of the iNANO House (1593-012), Gustav Wieds Vej 14, 8000 Aarhus C

 

Professor Angelika Kühnle, Institute of Physical Chemistry, University Mainz, Mainz, Germany

Organic Molecules on Insulating Surfaces:  From Self-Assembly to On-Surface Synthesis

Molecular self-assembly has proven to be a most versatile tool for creating functional structures on surfaces [1]. So far, the majority of studies has been performed on metallic substrates, and comparatively little is known about molecular structure formation on wide band gap insulators. However, molecular self-assembly on insulating surfaces can be fundamentally different from structure formation on metallic substrates due to the comparatively weak molecule-surface interaction. Consequently, special strategies have to be developed for anchoring organic molecules onto insulating surfaces [2]. Upon balancing the interplay between intermolecular and molecule-surface interactions, a rich variety of molecular structures can now be achieved at room temperature [3,4].

When aiming at creating application-relevant structures, thermal stability and a significant electron transport can be mandatory. Recently, on-surface synthesis has been identified as a promising strategy for arriving at covalently linked organic structures at surfaces. Transferring these design principles to insulating surfaces allows for further enhancing the structural flexibility on application-relevant substrates [5,6].

References

  1.  J. V. Barth, Annu. Rev. Phys. Chem. 58, 375 (2007)
  2.  P. Rahe, M. Kittelmann, J. Neff, M. Nimmrich, P. Maass, M. Reichling and A. Kühnle, Advanced Materials 25, 3948 (2013)
  3.  P. Rahe, M. Nimmrich and A. Kühnle, Small 8, 2969 (2012)
  4.  M. Kittelmann, P. Rahe and A. Kühnle, J. Phys.: Condens. Matter 24, 354007 (2012)
  5.  M. Kittelmann, P. Rahe, M. Nimmrich, C. Hauke, A. Gourdon and A. Kühnle, ACS Nano 5, 8420 (2011)
  6. M. Kittelmann, M. Nimmrich, R. Lindner, A. Gourdon, and A. Kühnle, ACS Nano 7, 5614 (2013)
  7. R. Lindner, P. Rahe, M. Kittelmann, A. Gourdon, R. Bechstein and A. Kühnle, Angew. Chem. Int. Ed. 53 (2014), doi: 10.1002/anie.201309128
  Host: