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Screen Printed Reflective Electrochromic Displays for Paper and Other Opaque Substrates
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.ORCID-id: 0000-0002-7303-6210
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.ORCID-id: 0000-0001-8485-6209
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.
Vise andre og tillknytning
2023 (engelsk)Inngår i: ACS Applied Optical Materials, ISSN 2771-9855, Vol. 1, nr 2, s. 578-586Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Paper electronics is a viable alternative to traditional electronics, leading to more sustainable electronics. Many challenges still require solutions before paper electronics become mainstream. Here, we present a solution to enable the manufacturing of reflective all-printed organic electrochromic displays (OECDs) on paper substrates; devices that are usually printed on transparent substrates, for example, plastics. In order to operate on opaque paper substrates, an architecture for reversely printed OECDs (rOECDs) is developed. In this architecture, the electrochromic layer is printed as the last functional layer and can therefore be viewed from the print side. Square shaped 1 cm2 rOECDs are successfully screen printed on paper, with a high manufacturing yield exceeding 99%, switching times <3 s and high color contrast (ΔE* > 27). Approximately 60% of the color is retained after 15 min in open-circuit mode. Compared to the conventional screen printed OECD architectures, the rOECDs recover approximately three times faster from storage in a dry environment, which is particularly important in systems where storage in low humidity atmosphere is required, for example, in many biosensing applications. Finally, a more complex rOECD with 9 individually addressable segments is successfully screen printed and demonstrated.

sted, utgiver, år, opplag, sider
2023. Vol. 1, nr 2, s. 578-586
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Identifikatorer
URN: urn:nbn:se:ri:diva-64117DOI: 10.1021/acsaom.2c00140OAI: oai:DiVA.org:ri-64117DiVA, id: diva2:1740618
Tilgjengelig fra: 2023-03-01 Laget: 2023-03-01 Sist oppdatert: 2023-06-08bibliografisk kontrollert

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Freitag, KathrinBrooke, RobertBeni, ValerioAndersson Ersman, Peter

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