中国物理B ›› 1999, Vol. 8 ›› Issue (9): 670-681.doi: 10.1088/1004-423X/8/9/006

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

PREPARATION OF STRIPE-SHAPED DOMAIN STRUCTURE IN FERROELECTRIC LIQUID CRYSTAL AND THE FABRICATION OF SPATIAL LIGHT MODULATOR

吕瑞波1, 徐克璹1, 张舒雁1, 顾翔1, 邢中菁1, 邓慧华2, 顾建华2, 肖中党2, 陆祖宏2   

  1. (1)Department of Physics, State Joint Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Fudan University, Shanghai 200433, China; (2)National Laboratory of Molecular and Biomolecular Electronic, Southeast University, Nanjing 210018, China
  • 收稿日期:1998-11-24 修回日期:1999-03-24 出版日期:1999-09-20 发布日期:1999-09-20
  • 基金资助:
    Project supported by the Science and Technology Development Foundation of Shanghai, China (Grant No. 96JC14005).

PREPARATION OF STRIPE-SHAPED DOMAIN STRUCTURE IN FERROELECTRIC LIQUID CRYSTAL AND THE FABRICATION OF SPATIAL LIGHT MODULATOR

Lǜ Rui-bo (吕瑞波)a, Xu Ke-shu (徐克璹)a, Zhang Shu-yan (张舒雁)a, Gu Xiang (顾翔)a, Xing Zhong-jing (邢中菁)a, Deng Hui-hua (邓慧华)b, Gu Jian-hua (顾建华)b, Xiao Zhong-dang (肖中党)b, Lu Zu-hong (陆祖宏)b   

  1. a Department of Physics, State Joint Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Fudan University, Shanghai 200433, China; b National Laboratory of Molecular and Biomolecular Electronic, Southeast University, Nanjing 210018, China
  • Received:1998-11-24 Revised:1999-03-24 Online:1999-09-20 Published:1999-09-20
  • Supported by:
    Project supported by the Science and Technology Development Foundation of Shanghai, China (Grant No. 96JC14005).

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摘要： The stripe-shaped domain (SSD) structure was prepared in the initial ferroelectric liquid crystal (FLC) alignment without the application of an external electric field, which was realized by the aligning layer modification through the doping of tin tetra-2, 4-dimethyl phenoxy phthalocyanine (SnPc) into the rubbed polyimide films. Atomic force microscopy was used to investigate the alignment films and the corresponding aligning ability was evaluated through the pre-tilt angle measurement. The memory capability and the contrast ratio of thus aligned SSFLC cells have been enhanced and improved with the appearance of the SSD structure. The electrically controlled 64×64 FLC spatial light modulator was fabricated using the improved ligning method, which proves valuable for the practical device fabrication.

Abstract: The stripe-shaped domain (SSD) structure was prepared in the initial ferroelectric liquid crystal (FLC) alignment without the application of an external electric field, which was realized by the aligning layer modification through the doping of tin tetra-2, 4-dimethyl phenoxy phthalocyanine (SnPc) into the rubbed polyimide films. Atomic force microscopy was used to investigate the alignment films and the corresponding aligning ability was evaluated through the pre-tilt angle measurement. The memory capability and the contrast ratio of thus aligned SSFLC cells have been enhanced and improved with the appearance of the SSD structure. The electrically controlled 64×64 FLC spatial light modulator was fabricated using the improved ligning method, which proves valuable for the practical device fabrication.

中图分类号:  (Liquid crystals)

  • 42.70.Df
77.84.Nh (Liquids, emulsions, and suspensions; liquid crystals) 77.80.Dj (Domain structure; hysteresis) 61.30.Gd (Orientational order of liquid crystals; electric and magnetic field effects on order) 42.79.Hp (Optical processors, correlators, and modulators) 42.79.Kr (Display devices, liquid-crystal devices)