Investigation of order and optical switching in ultrathin films of azo-containing materials using dielectric spectroscopy

The azobenzene group is known for its cis-trans isomerism under irradiation with blue and ultraviolet light, respectively. New organic materials with different dipole moments were used to investigate the effect of molecular parameters on supramolecular film properties of ultrathin films. The influence of dipole moment and the molecular environment of the materials on the switching process is examined by means of dielectric spectroscopy.