A Flexible Encapsulation Structure for Ambient-Air Operation of Light-Emitting Electrochemical Cells
2016 (English)In: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 18, no 1, 105-110 p.Article in journal (Other academic) Published
The emerging field of organic electronics is heralded because it promises low-cost and flexible devices, and it was recently demonstrated that a light-emitting electrochemical cell (LEC) can be fabricated with cost-efficient methods under ambient air. However, the LEC turns sensitive to oxygen and water during light-emission, and it is therefore timely to identify flexible encapsulation structures. Here, we demonstrate that a multilayer film, featuring a water and oxygen barrier property of ≈1 × 10–3 g/m2/day and ≈1 × 10–3 cm3/m2/bar/day respectively, is fit for this task. By sandwiching an LEC between such multilayer barriers, as attached by a UV-curable epoxy, we realize flexible LECs with performance on par with identical glass-encapsulated devices, and which remain functional after one year storage under air.
Place, publisher, year, edition, pages
2016. Vol. 18, no 1, 105-110 p.
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-102398DOI: 10.1002/adem.201500245ISI: 000370146000014OAI: oai:DiVA.org:umu-102398DiVA: diva2:807534
Originally included in thesis in manuscript form.2015-04-232015-04-232016-03-30Bibliographically approved