Electrically controllable microstructures and dynamic light scattering properties of liquid crystals with negative dielectric anisotropy

doi:10.1039/c5ra02516h

CORC > 北京大学 > 工学院

	Electrically controllable microstructures and dynamic light scattering properties of liquid crystals with negative dielectric anisotropy
	Wang, Huihui ; Wang, Ling ; Xie, Hui ; Li, Chenyue ; Guo, Shumeng ; Wang, Meng ; Zou, Cheng ; Yang, Dengke ; Yang, Huai
刊名	rsc advances
	2015
DOI	10.1039/c5ra02516h
英文摘要	In this paper thin films which can potentially function as novel electrically switchable shutters were fabricated based on a commercially available liquid crystal media with negative dielectric anisotropy, and their microstructures and dynamic light scattering properties were investigated in detail by the in situ formation of polymer networks. It was found that the light transmittance of the prepared films in the wavelength range from 400 nm to 3000 nm can be expediently controlled on demand by felicitously applying an electric field with an appropriate strength. Compared to the ultraviolet (UV) and visible (Vis) regions, the light transmittance in the near infrared (NIR) region was much higher when a voltage over 30 V was applied. Continually raising the applied voltage would, however, increase the NIR transmittance without noticeable changes in the UV and Vis regions. Furthermore, we have also explored the relationship between the dynamic light scattering properties and the corresponding microstructures of the polymer network. The velocity of the flow of dynamic scattering increased with the increase of the applied voltage, which led to the gradual appearance of large sized pores followed by oversized connected pores with many tiny holes in the boundary. Accordingly, the dynamic light scattering of the samples increased with the increasing microstructures of the polymer network. ? The Royal Society of Chemistry 2015.; SCI(E); EI; 0; ARTICLE; Dyang@kentvm.kent.edu; yanghuai@pku.edu.cn; 42; 33489-33495; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/329127]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Huihui,Wang, Ling,Xie, Hui,et al. Electrically controllable microstructures and dynamic light scattering properties of liquid crystals with negative dielectric anisotropy[J]. rsc advances,2015.
APA	Wang, Huihui.,Wang, Ling.,Xie, Hui.,Li, Chenyue.,Guo, Shumeng.,...&Yang, Huai.(2015).Electrically controllable microstructures and dynamic light scattering properties of liquid crystals with negative dielectric anisotropy.rsc advances.
MLA	Wang, Huihui,et al."Electrically controllable microstructures and dynamic light scattering properties of liquid crystals with negative dielectric anisotropy".rsc advances (2015).