The optical properties of chromophores can be efficiently tuned by electrostatic fields
generated in their close environment, a phenomenon that plays a central role for the …

This thesis investigates novel single-molecule luminescence phenomena at their inherent,
sub-molecular length scale. The microscopic understanding of luminescence processes will …

Experimental results suggest that molecular geometry and energies can be influenced by
the presence of thin film substrates as well as surrounding molecules. It is imperative that …

In scanning tunneling microscopy (STM) experiments of molecules on insulating films,
tunneling through molecular resonances implies transiently charging the molecule. The …