Treated Transparent Conducting Films for Full Flexible Electrochromic Devices

Kanyanee Sanglee^1,2, Surawut Chuangchote^1,2*, Pipat Chaiwiwatworakul^1,2, Pisist Kumnorkaew³

1. ¹The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, 126 Prachauthit Rd., Bangmod, Tungkru, Bangkok 10140, Thailand.
2. ²Centre of Excellence on Energy Technology and Environment, Science and Technology Postgraduate Education and Research Development Office, Bangkok Thailand
3. ³National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Rd., Khlongnueng, Khlongluang, Pathumthani 12120, Thailand

Published in The First NZAAR International Event Series on Natural and Built Environment, Cities, Sustainability and Advanced Engineering, Putrajaya, Malaysia, 26 June 2016, pages 104 to 105. New Zealand Academy of Applied Research. ISSN 2463-5979 (online), 2463-5960 (print).

Abstract

Treatment process by methanesulfonic acid solution was used to improve electrical conductivity of poly 3,4ethylenedioxythiophene:poly(styrene sulfonic acid) (PEDOT:PSS). Weak acid could be used in the treatment because some PSS chains were moved out from the polymer mixer films without damage on the substrates. Variation of number of PEDOT:PSS thin-film layer showed different conductivities. Two layers of treated PEDOT:PSS films were adequate for use as transparent conducing films. Obtained transparent conducting films on polyester substrates were used to fabricate flexible electrochromic devices. The devices showed reversible change in color with switching applied voltages (±3 V). Cyclic voltammetry (CV) and UV-vis-NIR spectroscopy were used to confirm the activity of P3HT/treated-PEDOT:PSS electrode and investigate the light transmission properties of full flexible devices, respectively. .

Keywords: Conductivity; Flexible Electrochromic Devices; Methanesulfonic Acid; PEDOT:PSS

Rights

Copyright © New Zealand Academy of Applied Research Ltd 2016. All rights reserved. Reproduced in the GDI Academy archive from the original proceedings without change to the authors’ text.