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Issue 23, 2019

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

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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

11 Mar 2019
14 May 2019
First published
17 May 2019

This article is Open Access

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

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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