Length Bidisperse Carbon Nanotubes Dispersions in Thermotropic Liquid Crystals | Zendy

V. Popa-Nita | Zendy; Slavko Buček | Zendy

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Length Bidisperse Carbon Nanotubes Dispersions in Thermotropic Liquid Crystals

Author(s) -

V. Popa-Nita,

Slavko Buček

Publication year - 2012

Publication title -

physics research international

Language(s) - English

Resource type - Journals

eISSN - 2090-2239

pISSN - 2090-2220

DOI - 10.1155/2012/750890

Subject(s) - thermotropic crystal , liquid crystal , materials science , carbon nanotube , mesoscopic physics , phase (matter) , crystal (programming language) , coupling (piping) , volume fraction , chemical physics , condensed matter physics , nanotechnology , composite material , organic chemistry , liquid crystalline , physics , chemistry , optoelectronics , computer science , programming language

We study nematic liquid crystal driven alignment of carbon nanotubes dispersed in them. We extend the mesoscopic model presented in (P. Van der Schoot et al. 2008, V. Popa-Nita, and S. Kralj 2010) including the effect of length bidispersity of carbon nanotubes. The free energy of the mixture is written as the sum of the Doi free energy for lyotropic nematic ordering of the two carbon nanotubes types, the Landau-de Gennes free energy for the thermotropic ordering of liquid crystal, and the coupling term between liquid crystal molecules and carbon nanotubes. The phase ordering of the mixtures is analyzed as a function of volume fraction, the strength of coupling, and the temperature

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