The effects of silica nanoparticles on blue-phase liquid crystals

Che Ju Hsu, Mao Kun Huang, Pei Chun Tsai, Chia Ting Hsieh, Kuan Lin Kuo, Chang Feng You, Kuang Yao Lo, Chi Yen Huang

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We investigate the effects of hydrophobic silica nanoparticles (SNs) on blue-phase liquid crystals (BPLCs). The optical microscope and reflection spectra observation reveal that a tiny hydrophobic SN dopant stabilises the BPLC phase, and widens the temperature range of the BP I phase. Furthermore, the doped dilute SNs can fine-tune their positions to relax the formation stress of the BPLC lattices, and slightly increase the platelet sizes of the BPLCs. The doped SNs also decrease the driving voltage and response time of the BPLC cell, because the added SNs decrease the elastic constant of the LC host and the relaxation time constant of the BPLC mixture.

Original languageEnglish
Pages (from-to)303-309
Number of pages7
JournalLiquid Crystals
Issue number2
Publication statusPublished - 2018 Jan 26


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Hsu, C. J., Huang, M. K., Tsai, P. C., Hsieh, C. T., Kuo, K. L., You, C. F., Lo, K. Y., & Huang, C. Y. (2018). The effects of silica nanoparticles on blue-phase liquid crystals. Liquid Crystals, 45(2), 303-309.