By Haifeng Yu
Contemporary growth during this box shows that integrating photochromic molecules into LC fabrics permits one to photo-manipulate targeted good points equivalent to photoinduced part transition, photocontrolled alignment and phototriggered molecular cooperative movement, resulting in their novel functions past monitors. This booklet introduces readers to this box, from the first- to the complicated point in photoresponsive LC fabrics. the topic is brought step by step, together with the elemental wisdom of LCs, photoresponsive houses of LCs, and their specified performances within the type of low-molecu. �Read more...
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Extra info for Dancing with Light : Advances in Photofunctional Liquid-Crystalline Materials
A. (2007). NMR in chiral and achiral smectic phases: Structure, orientational order and dynamics, Prog. Nucl. Magn. Reson. Spectrosc. 50, pp. 1–50. Vorländer, D. (1908). Kristallinische-flüssige substanzen, Stuttgart, Germany: Enke. Wang, X. J. and Zhou, Q. F. (2004). Liquid crystalline polymers, World Scientific. Zhou, Q. , Li, H. M. and Feng, X. D. (1987). Synthesis of liquid-crystalline polyacrylates with laterally substituted mesogens, Macromolecules 20, pp. 233–234. 29 Chapter 2 Structures and Properties Generally, liquid crystals (LCs) are formed in rod-like organic molecules which interact through strongly anisotropic intermolecular forces.
Characterization Methods Coles reported that the stabilization of these blue phases over a wide temperature range of 60°C in a mixture of three homologous dimers mixed in equal proportion with a small amount of chiral dopant [Coles & Pivnenko, 2005]. In May 2008, it was announced that Samsung had developed the first blue phase LCD panel. The above-mentioned phase classification method belongs to LCs with rod-like molecules. However, some LCs are formed by disc-like molecules, which is called discotic LCs.
12 Electrically controlled Fréedericksz transition. The director rotates at some critical E field. Before Ec nothing happens. 3 LC Alignment The LC materials possess both an ordering of crystalline materials and easy controllability of an isotropic liquid, which enables their molecular orientation to be easily manipulated. LC molecules are easily and strongly responsive to various types of external stimuli such as electric or magnetic fields, or the presence of surfaces with particular properties.