Effect of achiral halogen-substituted bent-core molecules on the blue phases

KEMİKLİOĞLU E., Chien L.

Journal of Molecular Liquids, cilt.263, ss.399-405, 2018 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 263
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.molliq.2018.05.030
  • Dergi Adı: Journal of Molecular Liquids
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.399-405
  • Anahtar Kelimeler: Bent-core molecules, Blue phases, Bragg reflection, Dipole moments, Liquid crystals, Switching voltage
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

The effects of molecule structure and concentration of achiral bent-core molecules on the blue phase liquid crystal stabilization have been investigated. Blue phase mixtures are formed doping bent-core molecules and BP temperature range is able to widen doping bent-core molecules with different substituents. Bent-core molecules with different substituents are found to cause a decrement in the threshold and turn-on voltages of the bent-core doped blue phase liquid crystal samples, as a result of the difference in their molecular shape and dipole moments. Use of bent core LC as dopants for a blue phase LC mixture led to a reduction of the driving voltage by more than 50%.