Voltage-assisted ion reduction in liquid crystal-silica nanoparticle dispersions

Shu Wei Liao, Chia Ting Hsieh, Chih Chin Kuo, Chi-Yen Huang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We demonstrate an effective method of reducing mobile ions in a silica nanoparticle (SN)-doped liquid crystal (LC) cell by alternating-current high-voltage pulse treatment (ACHVPT). In this method, the director distortion in LCs near the substrate creates a lifting force that moves the SNs toward the substrate. The moving SNs trap mobile ions in the cell bulk. After ACHVPT, the SNs and mobile ions are adsorbed onto the substrates, thereby significantly decreasing cell ion density. The ion density of the SN-doped LC cell after ACHVPT treatment is 1.5 of that of a pristine LC cell.

Original languageEnglish
Article number161906
JournalApplied Physics Letters
Volume101
Issue number16
DOIs
Publication statusPublished - 2012 Oct 15

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liquid crystals
silicon dioxide
nanoparticles
electric potential
high voltages
cells
alternating current
ions
doped crystals
pulses
traps

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Liao, Shu Wei ; Hsieh, Chia Ting ; Kuo, Chih Chin ; Huang, Chi-Yen. / Voltage-assisted ion reduction in liquid crystal-silica nanoparticle dispersions. In: Applied Physics Letters. 2012 ; Vol. 101, No. 16.
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Voltage-assisted ion reduction in liquid crystal-silica nanoparticle dispersions. / Liao, Shu Wei; Hsieh, Chia Ting; Kuo, Chih Chin; Huang, Chi-Yen.

In: Applied Physics Letters, Vol. 101, No. 16, 161906, 15.10.2012.

Research output: Contribution to journalArticle

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