Effect of Poly(vinylidene fluoride-trifluoroethylene) Film Concentration and Alignment Method upon Liquid Crystal Alignment. (18th November 2015)

• Record Type: Journal Article
• Authors: Park, Hong-Gyu; Jeong, Hae-Chang; Oh, Byeong-Yun; Han, Jeong-Min; Seo, Dae-Shik
• Is Part Of: ECS journal of solid state science and technology. Volume 5:Number 2(2016)
• Page Start: R12
• Page End: R16
• Publication Date: 2015-11-18
• Subjects: ion beam irradiation -- liquid crystal (LC) -- poly(vinylidene fluoride-trifluoroethylene) -- rubbing -- twisted nematic cell; Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2.0181602jss
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : The electro-optical (EO) characteristics of twisted nematic (TN) cells based on poly(vinylidene fluoride–trifluoroethylene) [PVDF-TrFE] films have been studied, including the effects of rubbing and ion-beam (IB) irradiation alignment methods and the use of different PVDF-TrFE precursor concentrations during film fabrication. Homogeneously and uniformly aligned liquid crystal (LC) molecules were obtained on PVDF-TrFE films prepared using both 3 wt% and 5 wt% precursor concentrations. TN cells based upon IB-irradiated PVDF-TrFE films operated normally, but those based upon rubbed PVDF-TrFE films operated with superior performance.