Investigation of liquid-crystalline behavior of nickel octakisalkylthiophthalocyanines and orientation of their films
作者： TV Basova , AG Gürek , V Ahsen , None
DOI: 10.1016/S0928-4931(02)00051-6
关键词: Thermotropic crystal 、 Materials science 、 Annealing (metallurgy) 、 Raman spectroscopy 、 Crystallography 、 Mesogen 、 Discotic liquid crystal 、 Atmospheric temperature range 、 Phthalocyanine 、 Organic chemistry 、 Thin film
摘要: In this work, the mesogenic properties of octa-alkyl-substituted Ni(II) phthalocyanine derivatives are reported. These phthalocyanines (Pc) demonstrate thermotropic phase behavior and give rise to discotic liquid crystals. The dependence film orientation on temperature in range from 0 300 °C was studied by method Raman spectroscopy. It shown that films disordered where samples NiPc solid. Oriented may be obtained annealing at temperatures which materials mesogenic. According results a polarization study, molecules ordered oriented virtually perpendicular substrate surface.
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