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Highly conductive PEDOT:PSS film by incorporating secondary doping and post-treatment for ITO-free polymer dispersed liquid crystal display

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 incorporating secondary doping and post-treatment for ITO-free polymer dispersed liquid crystal display. Molecular Crystals and Liquid Crystals, 647 (1). pp. 28-36. ISSN 1542-1406. https://resolver.caltech.edu/CaltechAUTHORS:20170615-091629693

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Abstract

In this paper, highly conductive poly(3,4-ethylenedioxythiphene):poly(styrenesulfonate) (PEDOT:PSS) thin films realized by incorporating secondary doping technique with post-treatment process is demonstrated. The conductivity of the PEDOT:PSS film enhanced greatly from 0.6 S/cm to 736 S/cm after 1.25% of p-toluenesulfonic acid solution was doped into the PEDOT:PSS dispersion. The post-treatment using dimethyl sulfoxide further improved the conductivity to 1549 S/cm. We found that the electro-optical properties of the polymer dispersed liquid crystal (PDLC) cells fabricated by the highly conductive PEDOT:PSS films were comparable to those constructed by ITO. This work reveals that highly conductive PEDOT:PSS film is a suitable material for manufacturing ITO-free liquid crystal devices.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1080/15421406.2017.1289426DOIArticle
http://www.tandfonline.com/doi/full/10.1080/15421406.2017.1289426PublisherArticle
Additional Information:© 2017 Taylor & Francis. Published online: 23 May 2017.
Subject Keywords:PEDOT:PSS, ITO free, polymer dispersed liquid crystal
Issue or Number:1
Record Number:CaltechAUTHORS:20170615-091629693
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170615-091629693
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:78239
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Jun 2017 16:36
Last Modified:03 Oct 2019 18:06

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