Isothermal electrically and optically induced phase separation of liquid crystal and poly(N-vinylcarbazole) films

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103667

Title:	Isothermal electrically and optically induced phase separation of liquid crystal and poly(N-vinylcarbazole) films
Authors:	鄭恪亭;Liu, Yen-Chen;Cheng, Ko-Ting;Fuh, Andy Ying-Guey
Contributors:	理學院光電科學與工程學系
Date:	2014-08-25
Issue Date:	2026-04-23 11:34:55 (UTC+8)
Publisher:	The Optical Society;United States: Optica Publishing Group
Abstract:	摘要： This paper reports the electro- and photo-isomerization-induced isothermal phase separation of liquid crystals (LCs) and poly(N-vinylcarbazole) (PVK). The proposed phase separation process determines reformed PVK films on substrates to obtain switchable LC light valves. UV illumination induces simultaneous isothermal phase transition of the mixture and dissolution of PVK into the LCs. Phase separation of PVK and LCs occurs by the reversed phase transition via rapid electro-isomerization and slow dark-relaxation. During rapid phase separation, micron-sized LC domains (branch-like PVK structures) are generated to develop stable light scattering; during slow dark-relaxation, a uniform PVK film is obtained, thereby providing stable transparency. 其他題名： Opt Express 出版者： United States: Optica Publishing Group 出版日期： 2014-08-25 出處： Optics Express, 2014-08, Vol.22 (17), p.21004- 資源來源： Optica Publishing Group Journals 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/oe.22.021004 識別號： PMID: 25321301
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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