The Study of Aligning Liquid Crystal in Micron-size Area Using Atomic Force Microscope with Fiber Probing Tip
碩士 === 國立交通大學 === 物理研究所 === 88 === In this study, we use atomic force microscope( AFM ) with fiber probing tip to align liquid crystal in micron-size area by polyimide surface modification. We also use AFM to examine different treated polyimide films. We have four conclusions. (1) The same rubbing s...
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| Format: | Others |
| Language: | en_US |
| Published: |
2000
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| Online Access: | http://ndltd.ncl.edu.tw/handle/56807545214555866810 |
| Summary: | 碩士 === 國立交通大學 === 物理研究所 === 88 === In this study, we use atomic force microscope( AFM ) with fiber probing tip to align liquid crystal in micron-size area by polyimide surface modification. We also use AFM to examine different treated polyimide films. We have four conclusions. (1) The same rubbing strength causes different alignment effects on different surfaces. (2) From AFM images, we observe polyimide surface deformation increases with rubbing strength. (3) We successfully align liquid crystal in micron-size areas with different sizes and relative positions. The more times fiber tip modifies, the better alignment we can get. (4) The rubbing-induced polymeric chain alignment is the major effect in aligning liquid crystal molecules.
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