Optically controlled alignment of liquid crystal on polyimide films exposed to undulator radiation

被引：8

作者：

Shitomi, H ^{[1
]}

Ibuki, T

Matsumoto, S

Onuki, H

机构：

[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

[2] Kyoto Univ Educ, Fushimi Ku, Kyoto 6120863, Japan

[3] Meiji Univ, Tama Ku, Kawasaki, Kanagawa 2141863, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷

关键词：

photo-alignment; liquid crystal; undulator radiation; linearly polarized Far-UV;

D O I：

10.7567/JJAPS.38S1.176

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Liquid crystal (LC) alignment properties on photo-exposed polyimide films were studied in the Wand VUV regions using linearly polarized synchrotron radiation from the Onuki-type polarizing undulator installed in the electron storage ring NIJI-II in ETL. It was found that the LC alignment uniformity depends on the UV and VUV exposure conditions, especially on the wavelength of the radiation. The photoabsorption spectrum of polyimide films was also measured in both IN and VUV regions. It was concluded that at least two mechanisms exist in the photo-induced alignment of LC molecules on the polyimide films.

引用

页码：176 / 179

页数：4

共 50 条

[21] Interaction of Ions in Liquid Crystals with Polyimide Films in Liquid Crystal Cells [J].

Mizusaki, Masanobu ;

Miyashita, Tetsuya ;

Uchida, Tatsuo .

KOBUNSHI RONBUNSHU, 2011, 68 (11) :743-748

[22] Surface alignment of liquid crystal multilayers evaporated on photoaligned polyimide film observed by surface profiler [J].

Oo, TN ;

Iwata, T ;

Kimura, M ;

Akahane, T .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2005, 6 (02) :149-157

[23] Vertical alignment of liquid crystal on tocopherol-substituted polystyrene films [J].

Kim, Taehyung ;

Ju, Changha ;

Kang, Hyo .

LIQUID CRYSTALS, 2018, 45 (06) :801-810

[24] Soluble polyimide films as alignment layers for bistable chiral-tilted homeotropic nematic liquid crystal display applications [J].

Chang, Chi-Jung ;

Tseng, I-Hsiang ;

Lin, Yu-Chi ;

Wu, Bo-Shiuan ;

Liang, Bau-Jy ;

Tsai, Mei-Hui .

THIN SOLID FILMS, 2013, 544 :74-78

[25] Homeotropic alignment properties of nematic liquid crystal on UV-exposed alignment film [J].

Akiyama, H ;

Iimura, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (7B) :L765-L768

[26] Computational chemistry modeling and design of photoswitchable alignment materials for optically addressable liquid crystal devices [J].

Marshall, K. L. ;

Sekera, E. R. ;

Xiao, K. .

LIQUID CRYSTALS XIX, 2015, 9565

[27] Nematic liquid crystal alignment on phthalocyanine LB films [J].

Lu, RB ;

Xu, KS ;

Zhang, ZK ;

Zhong, JH ;

Li, GZ ;

Wu, HM ;

Lu, ZH .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1996, 289 :77-87

[28] Preliminary Study of the Superlubricity Behavior of Polyimide-Induced Liquid Crystal Alignment [J].

Gao, Xinlei ;

Chen, Hao ;

Lv, Sichao ;

Zhang, Zhiyong ;

Wang, Tingting .

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2022, 144 (04)

[29] Alignment of liquid crystal molecules on UV-irradiated poly(vinylcinnamate) films [J].

Iimura, Y ;

Kobayashi, S .

POLYMER SURFACES AND INTERFACES: CHARACTERIZATION, MODIFICATION AND APPLICATION, 1997, :251-261

[30] Optically-controlled Alignment of Liquid Crystals on Alignment Layer (PWD) Containing Azo-group [J].

Han, K. Y. ;

Song, J. K. ;

Lee, J. S. .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1998, 325 :43-50

← 1 2 3 4 5 →