Issue 23, 2019

Inkjet-printed polymer-based electrochromic and electrofluorochromic dual-mode displays

Abstract

We report on inkjet-printed dual-mode devices based on the synchronous electrochromic and electrofluorochromic effect of the polyindenofluoren-8-tryarylamine polymer (PIF8-TAA). Reference devices show switching times under 4 s, a coloration efficiency of 542 ± 10 cm2 C−1 at 395 nm, an electrochromic contrast of 50 ± 4% in the visible spectra and a fluorescence contrast ratio of 4.1 ± 0.3. The material is highly transparent in its neutral state and changes to a deep red color by oxidation. Utilizing PEDOT:PSS as electrode material, inkjet printing enabled the fabrication of freely, digitally designed device layouts providing a cost-efficient method for low-level display applications. The results highlight the applicability of digitally printed dual-mode EFCD for signage or advertisements.

Graphical abstract: Inkjet-printed polymer-based electrochromic and electrofluorochromic dual-mode displays

Supplementary files

Article information

Article type
Paper
Submitted
11 Mar 2019
Accepted
14 May 2019
First published
17 May 2019
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2019,7, 7121-7127

Inkjet-printed polymer-based electrochromic and electrofluorochromic dual-mode displays

M. Pietsch, T. Rödlmeier, S. Schlisske, J. Zimmermann, C. Romero-Nieto and G. Hernandez-Sosa, J. Mater. Chem. C, 2019, 7, 7121 DOI: 10.1039/C9TC01344J

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