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9 May 2007 Temperature control molecular stacking of discotic liquid crystal in columnar mesophase
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Abstract
Molecular stacking of discotic liquid crystals through self-assembly on solid substrates is observed. During the molecular stacking, thermal conditions can strongly affect the arrangement of discotic molecules. For ordered molecular stacking of discotic molecules slow and smooth variation in temperature is necessary. By carefully controlling cooling rate below 0.3°C min-1, orientational molecular stacking of discotic molecules and uniaxial aggregation of discotic columns can be produced on planar glass and indium-tin-oxide surfaces. If the temperature of discotic compound drops too fast, ordered molecular stacking may be destroyed by thermal turbulence due to fast change of temperature in adjacent regions.
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Wenjun Zheng, Cheng-Yan Chiang, Chi Wi Ong, Su-Chih Liao, and Jia-Yu Huang "Temperature control molecular stacking of discotic liquid crystal in columnar mesophase", Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 658719 (9 May 2007); https://doi.org/10.1117/12.722795
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