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.
Keywords
Organic compounds, Amorphous material,s Thin films, Electronic materials
DOI
10.1016/j.matchemphys.2015.02.035
Hyperlink
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, pp.232-240. ISSN 0254-0584. Available from: doi:10.1016/j.matchemphys.2015.02.035
Publication language
English (en)