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High-Performance Light-Emitting Electrochemical Cells by Electrolyte Design
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry. Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden..
Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden..
Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden..
Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden..
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2016 (English)In: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 28, no 8, p. 2618-2623Article in journal (Refereed) Published
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Abstract [en]

Polymer light-emitting electrochemical cells (LECs) are inherently dependent on a suitable electrolyte for proper function. Here, we design and synthesize a series of alkyl carbonate-capped star-branched oligoether-based electrolytes with large electrochemical stability windows, facile ion release, and high compatibility with common light-emitting materials. LECs based on such designed electrolytes feature fast turn-on, a long operational lifetime of 1400 h at >100 cd m(-2) and a record-high power conversion efficiency of 18.1 lm W-1, when equipped with an external outcoupling film.

Place, publisher, year, edition, pages
2016. Vol. 28, no 8, p. 2618-2623
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Materials Chemistry
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URN: urn:nbn:se:uu:diva-297352DOI: 10.1021/acs.chemmater.5b04847ISI: 000375244500018OAI: oai:DiVA.org:uu-297352DiVA, id: diva2:941955
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilSwedish Energy AgencyThe Kempe FoundationsKnut and Alice Wallenberg FoundationAvailable from: 2016-06-23 Created: 2016-06-22 Last updated: 2017-11-28Bibliographically approved

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Mindemark, JonasBrandell, Daniel

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