Dancing with Light : Advances in Photofunctional by Haifeng Yu

By Haifeng Yu

Contemporary development during this box shows that integrating photochromic molecules into LC fabrics permits one to photo-manipulate detailed good points corresponding to photoinduced part transition, photocontrolled alignment and phototriggered molecular cooperative movement, resulting in their novel functions past screens. This booklet introduces readers to this box, from the first- to the complicated point in photoresponsive LC Read more...

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Extra resources for Dancing with Light : Advances in Photofunctional Liquid-Crystalline Materials

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16 LC phases and their typical textures upon observation with POM. Blue phases are one of the most interesting self-organization structures in the field of LC researches. 18 shows typical examples of blue phase, which generally appears between a CLC phase and an isotropic liquid. Blue phase LCs usually possess a very narrow temperature range of only a few degrees of Kelvin. 17 One example of chiral LC phase obtained by introducing a chiral molecule. 18 Typical examples of blue phase of LCs. (a) A cylindrical region of double-twist structure; (b) Intersection of three doubletwist cylinders which form a defect; (c) Arrangement of doubletwist cylinders which may exist in BPI; and (d) Arrangement of double-twist cylinders which may exist in BPII.

A) A cylindrical region of double-twist structure; (b) Intersection of three doubletwist cylinders which form a defect; (c) Arrangement of doubletwist cylinders which may exist in BPI; and (d) Arrangement of double-twist cylinders which may exist in BPII. 19 20 Introduction the molecular directors rotate in a helical fashion perpendicular to lines that form a number of helical axes in different directions. It is sometimes called a double-twist structure even though an unlimited number of axes are present, which is more stable than the singletwist structure found in CLCs.

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