English

应用科学学报 ›› 1992, Vol. 10 ›› Issue (2): 101-105.

• 论文 • 上一篇    下一篇

液晶Langmuir-Blodgett膜的热电效应

方际宇1, 韦钰1, 孙政民2   

  1. 1. 东南大学;
    2. 南京大学
  • 收稿日期:1991-01-15 修回日期:1991-06-14 出版日期:1992-06-30 发布日期:1992-06-30
  • 基金资助:
    国家自然科学基金资助项目

PYROELECTRIC EFFECT IN LIQUID CRYSTAL LANGMUIR-BLODGETT FILMS

FANG JIYU1, WEI YU1, SUN ZHENQMIN2   

  1. 1. Southeast University;
    2. Nanjing University
  • Received:1991-01-15 Revised:1991-06-14 Online:1992-06-30 Published:1992-06-30

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摘要： 介绍使用水平提拉法制备非中心对称的液晶Langmuir-Blodgett(LB)膜.吸收光谱和形貌观察表明LB膜中液晶分子以聚集体的方式存在,LB膜的静态热电系数为10-11C·cm-2·K-1量级.同时讨论了LB膜结构变化对静态热电系数的影响.

关键词: 液晶, 热电效应, LB膜, 聚集体

Abstract: The noncentrosymmetric liquid crystal LB films were prepared by the horizontal lifting method. Optical absorption spectra and morphological observation showed that aggregates of liquid crystal molecules were formed in the LB films. In order to observe the pyroeleotrio effect in the polar LB films, the Al LB film Al structure was fabricated. The static pyroeleotrio coefficient was of the order of 10-11.cm-2·K-1. The influence of the change of the LB film structure on the pyroeleotrio coefficient was discussed based on the experimental results.

Key words: LB films, aggregates, pyroeleotrio effect, liquid crystal