Thin Films of Liquid Crystalline Phthalocyanines and their its Composites with Single-Walled Carbon Nanotubes: Properties and Alignment

Tamara Basova; Aliye Aslı Esenpinar; Sinem Tuncel; Mahmut Durmuş; Ayşe Gül Gürek; Vefa Ahsen

doi:10.4028/www.scientific.net/KEM.531-532.337

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 531-532Thin Films of Liquid Crystalline Phthalocyanines...

Thin Films of Liquid Crystalline Phthalocyanines and their its Composites with Single-Walled Carbon Nanotubes: Properties and Alignment

Abstract:

In this study, liquid crystalline copper phthalocyanine and single walled carbon nanotubes were dispersed in solution to prepare novel composites. Thin films of these composites prepared by solving of the composite in dimetylformamide and then by spin coating the solution onto the substrates were studied by the methods of polarizing microscopy, polarized Raman and optical absorption spectroscopies. It was shown that pure CuPcR₄ forms the films with a herringbone arrangement of phthalocyanine molecules within adjacent columns. An addition of carbon nanotubes (0.5-2 wt %) to CuPcR₄ leads to formation of the films with edge-on orientation of the molecules. The higher conductivity values were found for the films of phthalocyanine containing SWCNT. The lateral conductivity tends to decrease with the increase of SWCNT concentration from 0.5 to 2 wt %.

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Key Engineering Materials (Volumes 531-532)

Pages:

337-341

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.531-532.337

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Online since:

December 2012

Authors:

Tamara Basova, Aliye Aslı Esenpinar, Sinem Tuncel, Mahmut Durmuş, Ayşe Gül Gürek, Vefa Ahsen

Keywords:

Carbon Nanotube (CN), Hybrid Material, Liquid Crystals, Metal Phthalocyanines

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