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Improving the color switch contrast in PEDOT:PSS-based electrochromic displays
Lintec Corporation, Japan; Linköping University, Sweden.
RISE, Swedish ICT, Acreo.ORCID iD: 0000-0002-4575-0193
Linköping University, Sweden.
Linköping University, Sweden.
2012 (English)In: Organic electronics, ISSN 1566-1199, E-ISSN 1878-5530, Vol. 13, no 3, p. 469-474Article in journal (Refereed) Published
Abstract [en]

Poly(3,4-ethylenedioxythiophene) chemically doped with poly(styrene sulfonic acid) (PEDOT:PSS) is a material system commonly used as a conductive and transparent coating in several important electronic applications. The material is also electrochemically active and exhibits electrochromic (EC) properties making it suitable as the active element in EC display applications. In this work uniformly coated PEDOT:PSS layers were used both as the pixel electrode and as the counter electrode in EC display components. The pixel and counter electrodes were separated by a whitish opaque and water-based polyelectrolyte and the thicknesses of the two EC layers were varied independently in order to optimize the color contrast of the display element. A color contrast (ΔE∗, CIE L∗a∗b∗ color space) exceeding 40 was obtained with maintained relatively short switching time at an operational voltage less than 2V.

Place, publisher, year, edition, pages
2012. Vol. 13, no 3, p. 469-474
Keywords [en]
PEDOT:PSS, Electrochromic displays, Color contrast, Printed electronics, Flexible displays
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-62018DOI: 10.1016/j.orgel.2011.12.007OAI: oai:DiVA.org:ri-62018DiVA, id: diva2:1721733
Available from: 2022-12-22 Created: 2022-12-22 Last updated: 2023-06-05Bibliographically approved

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