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Electrical, optical and theoretical characterization of doped and undoped calamitic liquid crystal: (s)-5-octyloxy-2-[[[4-(2-methyl butoxy) phenyl] imino] methyl] phenol

M. SERIN1,* , F. KURUOGLU1, M. MOGULKOC1, M. CALISKAN1, Y. YALCIN-GURKAN2, O. YASA-SAHIN3, D. SAKAR3, B. BILGIN-ERAN3

Affiliation

  1. Department of Physics, Yildiz Technical University, Istanbul 34210, Turkey
  2. Namik Kemal University, Department of Chemistry, Değirmenaltı Campus, 59030 Tekirdağ, Turkey
  3. Department of Chemistry, Yildiz Technical University, Istanbul 34210, Turkey

Abstract

The electrical conductivities of undoped and doped calamitic liquid crystalline compound, (S)-5-octyloxy-2-[[[4-(2-methylbutoxy) phenyl] imino] methyl] phenol (OMPIMP) with tetrabutylammonium tetrafluoroborate as dopant were determined as a function of temperature. Optical studies of undoped and doped OMPIMP thin films were also carried out using spectrophotometer. Optical band gaps of doped and undoped OMPIMP thin films were determined through absorption spectra using Tauc plot. The frontier orbital energies; EHOMO, ELUMO and the band gap energies were calculated from the DFT calculations which were carried out by the hybrid B3LYP functional..

Keywords

Calamitic liquid crystals, Electrical conductivity, Phase transition temperature, Optical band gap energy, Density functional theory.

Citation

M. SERIN, F. KURUOGLU, M. MOGULKOC, M. CALISKAN, Y. YALCIN-GURKAN, O. YASA-SAHIN, D. SAKAR, B. BILGIN-ERAN, Electrical, optical and theoretical characterization of doped and undoped calamitic liquid crystal: (s)-5-octyloxy-2-[[[4-(2-methyl butoxy) phenyl] imino] methyl] phenol, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.483-487 (2014).

Submitted at: Jan. 24, 2014

Accepted at: May 15, 2014