Effect of the polyimide concentration on the memory stability of the silica-nanoparticle-doped hybrid aligned nematic cell

Chi-Yen Huang, Jian Hong Chen, Chia Ting Hsieh, Heng Cheng Song, Yu-Wu Wang, Lance Horng, Yu-Tai Shih, Shug June Hwang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigate the stability of the memory state of the silica-nanoparticle-doped hybrid aligned nematic (SN-HAN) cell. The memory stability of the cell is attributed to the employed planar substrate, which is coated with a homogeneous polyimide (H-PI) film. A H-PI film with a low H-PI solid concentration gives the cell high memory stability. This is because the low H-PI solid concentration causes the film to have a high polar surface energy, trapping polar silica nanoparticles on the planar substrate tightly. The low H-PI solid concentration also gives the substrate a bumpy surface, which has a large surface area for trapping silica nanoparticles.

Original languageEnglish
Article number021702
JournalJapanese Journal of Applied Physics
Volume50
Issue number2
DOIs
Publication statusPublished - 2011 Feb 1

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polyimides
Polyimides
Silica
Nanoparticles
silicon dioxide
Data storage equipment
nanoparticles
cells
Substrates
trapping
Interfacial energy
surface energy
causes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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title = "Effect of the polyimide concentration on the memory stability of the silica-nanoparticle-doped hybrid aligned nematic cell",
abstract = "We investigate the stability of the memory state of the silica-nanoparticle-doped hybrid aligned nematic (SN-HAN) cell. The memory stability of the cell is attributed to the employed planar substrate, which is coated with a homogeneous polyimide (H-PI) film. A H-PI film with a low H-PI solid concentration gives the cell high memory stability. This is because the low H-PI solid concentration causes the film to have a high polar surface energy, trapping polar silica nanoparticles on the planar substrate tightly. The low H-PI solid concentration also gives the substrate a bumpy surface, which has a large surface area for trapping silica nanoparticles.",
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Effect of the polyimide concentration on the memory stability of the silica-nanoparticle-doped hybrid aligned nematic cell. / Huang, Chi-Yen; Chen, Jian Hong; Hsieh, Chia Ting; Song, Heng Cheng; Wang, Yu-Wu; Horng, Lance; Shih, Yu-Tai; Hwang, Shug June.

In: Japanese Journal of Applied Physics, Vol. 50, No. 2, 021702, 01.02.2011.

Research output: Contribution to journalArticle

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AU - Chen, Jian Hong

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AU - Song, Heng Cheng

AU - Wang, Yu-Wu

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AU - Shih, Yu-Tai

AU - Hwang, Shug June

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