Title :
Investigation of order and optical switching in ultrathin films of azo-containing materials using dielectric spectroscopy
Author :
Buchsteiner, A. ; Brehmer, L.
Author_Institution :
Inst. of Phys., Potsdam Univ., Germany
fDate :
6/1/2001 12:00:00 AM
Abstract :
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
Keywords :
dielectric thin films; isomerisation; optical films; optical switches; organic compounds; permittivity; photochemistry; azo-containing materials; azobenzene group; blue light; cis-trans isomerism; dielectric spectroscopy; dipole moment; dipole moments; molecular environment; optical switching; order; organic materials; supramolecular film properties; ultrathin films; ultraviolet light; Chemicals; Dielectric materials; Dielectric measurements; Electrochemical impedance spectroscopy; Optical films; Optical materials; Optical sensors; Organic materials; Physics; Polymer films;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
