Structure-Dependent Tuning of Electro-Optic and Thermoplastic Properties in Triphenyl Groups Containing Molecular Glasses

Materials Chemistry and Physics 2015
Kaspars Traskovskis, Elmārs Zariņš, Lauma Laipniece, Andrejs Tokmakovs, Valdis Kokars, Mārtiņš Rutkis

The series of seven molecular compounds composed of DepeA chromophores and triphenylmethyl auxiliary groups were characterized by UVeVis spectroscopy, differential scanning calorimetry and quantum chemical calculations. Nonlinear optical (NLO) properties of compounds were determined by second harmonic generation measurements in corona poled thin glassy films. The results show that triphenylmethyl auxiliary groups are effective at shielding undesirable dipole interactions in solid phase thus increasing NLO efficiency of materials. Thermal stability up to 108 C was achieved for a polar order in poled samples.

Atslēgas vārdi
Organic compounds, Amorphous material,s Thin films, Electronic materials
DOI
10.1016/j.matchemphys.2015.02.035
Hipersaite
http://www.sciencedirect.com/science/article/pii/S0254058415001303

Traskovskis, K., Zariņš, E., Laipniece, L., Tokmakovs, A., Kokars, V., Rutkis, M. Structure-Dependent Tuning of Electro-Optic and Thermoplastic Properties in Triphenyl Groups Containing Molecular Glasses. Materials Chemistry and Physics, 2015, Vol.155, 232.-240.lpp. ISSN 0254-0584. Pieejams: doi:10.1016/j.matchemphys.2015.02.035

Publikācijas valoda
English (en)