Chou, T.-R.T.-R.ChouChen, S.-H.S.-H.ChenChiang, Y.-T.Y.-T.ChiangLin, Y.-T.Y.-T.LinCHIH-YU CHAO2018-09-102018-09-10201515421406http://www.scopus.com/inward/record.url?eid=2-s2.0-84936754720&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/391236In this study, a simple method to enhance the conductivity of poly(3,4-ethylenedioxythiphene):poly(styrenesulfonate) (PEDOT:PSS) thin films from 0.7 to 1185 S/cm by post-treatment with dimethyl sulfoxide (DMSO) is demonstrated. After the rubbing technique was applied, the DMSO-treated PEDOT:PSS film was used as both transparent electrode and alignment layer to fabricate ITO-free liquid crystal (LC) cells. The electro-optical properties of LC cells fabricated by rubbed PEDOT:PSS were compared to those constructed by ITO and polyimide. This work indicates that highly conductive PEDOT:PSS film is a promising material for ITO-free LC devices. © 2015 Taylor & Francis Group, LLC.ITO free; liquid crystal display; PEDOT:PSSDimethyl sulfoxide; Liquid crystal displays; Liquids; Optical properties; Organic solvents; Dimethyl sulfoxide (DMSO); Electrooptical properties; ITO free; Liquid crystal cells; PEDOT:PSS; Poly(3 ,4-ethylenedioxythiphene); Poly(styrene sulfonate); Transparent electrode; Conducting polymersjournal article10.1080/15421406.2015.10315812-s2.0-84936754720WOS:000357417600002