Silica-nanoparticle-doped nematic display with multistable and dynamic modes

Chi Yen Huang; Chien Cheng Lai; Yao Hsien Tseng; Ya Ting Yang; Ching Jui Tien; Kuang Yao Lo

doi:10.1063/1.2938880

Silica-nanoparticle-doped nematic display with multistable and dynamic modes

Chi Yen Huang, Chien Cheng Lai, Yao Hsien Tseng, Ya Ting Yang, Ching Jui Tien, Kuang Yao Lo

Department of Physics

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

We demonstrate a silica-nanoparticle-doped hybrid-aligned nematic device, which can be operated in the dynamic mode and the multistable mode. Under ac voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast response time for the dynamic mode. Under dc voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell bistable/multistable switching characteristics.

Original language	English
Article number	221908
Journal	Applied Physics Letters
Volume	92
Issue number	22
DOIs	https://doi.org/10.1063/1.2938880
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2938880

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title = "Silica-nanoparticle-doped nematic display with multistable and dynamic modes",

abstract = "We demonstrate a silica-nanoparticle-doped hybrid-aligned nematic device, which can be operated in the dynamic mode and the multistable mode. Under ac voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast response time for the dynamic mode. Under dc voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell bistable/multistable switching characteristics.",

author = "Huang, {Chi Yen} and Lai, {Chien Cheng} and Tseng, {Yao Hsien} and Yang, {Ya Ting} and Tien, {Ching Jui} and Lo, {Kuang Yao}",

note = "Funding Information: The authors would like to thank to the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC 95-2112-M-018-005-MY3.",

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doi = "10.1063/1.2938880",

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TY - JOUR

T1 - Silica-nanoparticle-doped nematic display with multistable and dynamic modes

AU - Huang, Chi Yen

AU - Lai, Chien Cheng

AU - Tseng, Yao Hsien

AU - Yang, Ya Ting

AU - Tien, Ching Jui

AU - Lo, Kuang Yao

N1 - Funding Information: The authors would like to thank to the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC 95-2112-M-018-005-MY3.

PY - 2008

Y1 - 2008

N2 - We demonstrate a silica-nanoparticle-doped hybrid-aligned nematic device, which can be operated in the dynamic mode and the multistable mode. Under ac voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast response time for the dynamic mode. Under dc voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell bistable/multistable switching characteristics.

AB - We demonstrate a silica-nanoparticle-doped hybrid-aligned nematic device, which can be operated in the dynamic mode and the multistable mode. Under ac voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast response time for the dynamic mode. Under dc voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell bistable/multistable switching characteristics.

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JF - Applied Physics Letters

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Silica-nanoparticle-doped nematic display with multistable and dynamic modes

Abstract

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