Azo Chromophore Functionalized Polythiophenes. Synthesis and Nonlinear Optical Properties
Małgorzata Zagórska , Torsten Gase , François Kajzar , Paul Raimond , Irena Kulszewicz-Bajer , Adam Proń
AbstractAbstract New polythiophene derivatives containing azo dye side group were prepared via copolymerization of 3-alkylthiophenes and Disperse Red 1 substituted thiophenes. The presence of chromophore groups in the polymers was confirmed by NMR and FTIR spectroscopies as well as by elemental analysis. The obtained soluble polymers were processed into thin films by spin coating technique and their nonlinear optical properties were studied by the optical second harmonic generation technique and by quadratic electro-optic Kerr effect. The second order nonlinear optical coefficients are : dsp = 6.8 pm/V and dpp = 28.3 pm/V at 1064 nm fundamental wavelength. The quadratic electro-optic Kerr coefficient is about three times larger for the unfunctionalized polymer than for unfoncionalized.
|Journal series||Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, ISSN 1058-725X|
|Publication indicators||= 4; = 2; = 6.0|
|Citation count*||6 (2016-05-16)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.