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应用科学学报 ›› 1995, Vol. 13 ›› Issue (1): 1-6.

• 论文 •    下一篇

LB膜的原子力显微镜观测:从微米至分子量级

杨晓敏, 顾忠泽, 韦锰   

  1. 东南大学
  • 收稿日期:1993-07-26 出版日期:1995-03-31 发布日期:1995-03-31
  • 基金资助:
    国家自然科学基金

OBSERVATIONO OF LB FILMS BY ATOMIC FORCE MICROSCOPY (AFM):FROM MICRON DOWN To MOLECULAR SCALES

YANG XIAOMIN, GU ZHONGZE, WEI YU   

  1. Southeast University
  • Received:1993-07-26 Online:1995-03-31 Published:1995-03-31

PDF

105

被引次数

14

摘要： 应用原子力显微镜(AFM)直接观测沉积在固体表面的硬脂酸LB膜微观结构,范围从微米-纳米-分子量级.AFM图象直接表征了膜的表面形貌、微观结构以及膜中存在的缺陷.实验中首次获得了较清晰、重复性好的硬脂酸分子结构AFM图象.将AFM探针作工具,通过增大针尖与样品间的作用力和控制扫描方式,有能力在LB膜表面微区进行直接的细微划刻,产生出特定的图形.实验中利用该方法直接测定了单分子膜的厚度.

关键词: 原子力显微镜, 硬脂酸, LB膜

Abstract: The atomic force microscopy (AFM) was used to observe the microscopic structure of stearic acid LB films deposited on solid substrate,the range being from micron down to molecular scales.The AFM images show the surface morphology of the film intermolecular arrays as well as film defects.By increasing the applied force from the AFM tip, we can make a pattern on LB films and directly measure the thickness of the monolayer.

Key words: atomic force microscopy (AFM), LB film, stearic acid