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Highly conductive PEDOT:PSS film by doping p-toluenesulfonic acid and post-treatment with dimethyl sulfoxide for ITO-free polymer dispersed liquid crystal device

Chou, Tsu-Ruey and Chen, Szu-Hua and Chiang, Yen-Te and Chang, Tien-Tzu and Lin, Chih-Wen and Chao, Chih-Yu (2017) Highly conductive PEDOT:PSS film by doping p-toluenesulfonic acid and post-treatment with dimethyl sulfoxide for ITO-free polymer dispersed liquid crystal device. Organic Electronics, 48 . pp. 223-229. ISSN 1566-1199. http://resolver.caltech.edu/CaltechAUTHORS:20170628-145657005

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Abstract

In this paper, the highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) film realized by applying the doping technique and the post-treatment process is demonstrated. The conductivity of the spin coated PEDOT:PSS film enhanced greatly from 0.7 S/cm to 736 S/cm after 1.25% of p-toluenesulfonic acid solution (50 wt%) was doped into the PEDOT:PSS aqueous dispersion. The post-treatment using dimethyl sulfoxide further improved the conductivity to 1549 S/cm. The highly conductive PEDOT:PSS film was used as transparent electrode to fabricate ITO-free polymer dispersed liquid crystal (PDLC) cell. The experimental results showed that the electro-optical properties of the PDLC cell fabricated by the highly conductive PEDOT:PSS film were comparable to those of the PDLC cell constructed by ITO. This study reveals that the highly conductive PEDOT:PSS film is a prospective material for manufacturing ITO-free liquid crystal devices.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.orgel.2017.05.052DOIArticle
http://www.sciencedirect.com/science/article/pii/S1566119917302562PublisherArticle
Additional Information:© 2017 Elsevier B.V. Received 27 March 2017, Revised 26 May 2017, Accepted 31 May 2017, Available online 1 June 2017.
Subject Keywords:PEDOT:PSS; ITO free; Polymer dispersed liquid crystal
Record Number:CaltechAUTHORS:20170628-145657005
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170628-145657005
Official Citation:Tsu-Ruey Chou, Szu-Hua Chen, Yen-Te Chiang, Tien-Tzu Chang, Chih-Wen Lin, Chih-Yu Chao, Highly conductive PEDOT:PSS film by doping p-toluenesulfonic acid and post-treatment with dimethyl sulfoxide for ITO-free polymer dispersed liquid crystal device, Organic Electronics, Volume 48, September 2017, Pages 223-229, ISSN 1566-1199, https://doi.org/10.1016/j.orgel.2017.05.052. (http://www.sciencedirect.com/science/article/pii/S1566119917302562)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:78674
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Jun 2017 22:54
Last Modified:28 Jun 2017 22:54

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