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Effect of the grain size on hysteresis of liquid‐crystalline Blue Phase I
Author(s) -
Nayek Prasenjit,
Jeong Heon,
Kang ShinWoong,
Lee Seung Hee,
Park HeungShik,
Lee Hyuck Jin,
Kim Hee Seop,
Lee GiDong
Publication year - 2012
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid20.6.318
Subject(s) - grain size , materials science , hysteresis , crystallite , particle size distribution , phase (matter) , condensed matter physics , particle size , optics , composite material , physics , chemistry , metallurgy , quantum mechanics
— 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.