Broadening of mesophase temperature range induced by doping calamitic mesogen with banana-shaped mesogen

Miroslav Cvetinov, Maja Stojanović, Dušanka Obadović, A. Vajda, K. Fodor-Csorba, Nandor Eber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have investigated three binary mixtures composed of selected banana-shaped dopant in low concentrations and calamitic mesogen in high. Banana-shaped dopant forms a B7 phase, while the calamitic mesogen exhibit nematic and smectic SmA and SmC phases. The occurring mesophases have been identified by their optical textures. At dopant concentrations of 2.2 and 3.1 mol%, there is evident broadening of nematic and smectic SmA temperature ranges in respect to the pure calamitic compound. Yet, the mixture with dopant concentration of 7 mol% exhibits narrower temperature ranges of mesophases. Increasing dopant concentration caused lowering of all phase transitions temperatures (TI-N, TN-SmA, TSmA-SmC) in all investigated mixtures. Therefore, mixing classic calamitic compounds with novel banana-shaped compound in low concentrations is viable way to attain useful mesophase range for application in industry.

Original languageEnglish
Title of host publication9th International Physics Conference of the Balkan Physical Union, BPU 2015
PublisherAmerican Institute of Physics Inc.
Volume1722
ISBN (Electronic)9780735413696
DOIs
Publication statusPublished - Mar 25 2016
Event9th International Physics Conference of the Balkan Physical Union, BPU 2015 - Istanbul, Turkey
Duration: Aug 24 2015Aug 27 2015

Other

Other9th International Physics Conference of the Balkan Physical Union, BPU 2015
CountryTurkey
CityIstanbul
Period8/24/158/27/15

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Cvetinov, M., Stojanović, M., Obadović, D., Vajda, A., Fodor-Csorba, K., & Eber, N. (2016). Broadening of mesophase temperature range induced by doping calamitic mesogen with banana-shaped mesogen. In 9th International Physics Conference of the Balkan Physical Union, BPU 2015 (Vol. 1722). [220008] American Institute of Physics Inc.. https://doi.org/10.1063/1.4944240