1. Effect of the grain size on hysteresis of liquid-crystalline Blue Phase I.
- Author
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Nayek, Prasenjit, Jeong, Heon, Kang, Shin-Woong, Lee, Seung Hee, Park, Heung-Shik, Lee, Hyuck Jin, Kim, Hee Seop, and Lee, Gi-Dong
- Subjects
GRAIN size ,POLYMER liquid crystals ,KERR electro-optical effect ,GAUSSIAN distribution ,HYSTERESIS - Abstract
- Three different blue-phase I liquid-crystal samples with different grain-size distribution were studied. Polycrystalline platelet grains reflects light in the visible region and have been observed under a polarizing optical microscope. Green and blue grain areas have been measured and then the statistical histogram by the Gaussian distribution function was fitted and the mean grain size was calculated. The effect of hysteresis on grain size has been compared for the three samples. Hysteresis depends explicitly on the grain-size distribution. Large grain size has revealed less hysteresis, while small grain size depicted pronounced hysteresis. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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