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

doi:10.1143/JJAP.50.021702

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 journal › Article

6 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 language	English
Article number	021702
Journal	Japanese Journal of Applied Physics
Volume	50
Issue number	2
DOIs	https://doi.org/10.1143/JJAP.50.021702
Publication status	Published - 2011 Feb 1

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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Huang, C-Y., Chen, J. H., Hsieh, C. T., Song, H. C., Wang, Y-W., Horng, L., Shih, Y-T., & Hwang, S. J. (2011). Effect of the polyimide concentration on the memory stability of the silica-nanoparticle-doped hybrid aligned nematic cell. Japanese Journal of Applied Physics, 50(2), [021702]. https://doi.org/10.1143/JJAP.50.021702

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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 journal › Article

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