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

Pietsch, M.; Rödlmeier, T.; Schlisske, S.; Zimmermann, J.; Romero-Nieto, C.; Hernandez-Sosa, G.

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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000096233
Veröffentlicht am 15.07.2019
Coverbild
Zugehörige Institution(en) am KIT Lichttechnisches Institut (LTI)
Heidelberg Karlsruhe Research Partnership (HEiKA)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2050-7526, 2050-7534
KITopen-ID: 1000096233
Erschienen in Journal of materials chemistry / C
Band 7
Heft 23
Seiten 7121-7127
Nachgewiesen in Web of Science
Scopus
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