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A light–emission textile device: conformal spray-sintering of a woven fabric electrode
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. LunaLEC AB, Tvistevägen 47, PO Box 7970, SE-90719 Umeå, Sweden.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. LunaLEC AB, Tvistevägen 47, PO Box 7970, SE-90719 Umeå, Sweden.
Sefar AG.
Vise andre og tillknytning
2016 (engelsk)Inngår i: Flexible and Printed Electronics, ISSN 2058-8585, Vol. 1, nr 2, artikkel-id 025004Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We report on the realization of an ultra-flexible, light-weight and large-area emissive textile device. The anode and active material of a light-emitting electrochemical cell (LEC) were deposited by conformal spray-coating of a transparent fabric-based electrode, comprising a weave of fine Ag-coated Cu wires and poly(ethylene naphthalene) monofilament fibers embedded in a polyurethane matrix. The yellow-emitting textile featured low turn-on voltage (5 V), high maximum brightness (>4000 cd m−2), good efficiency (3.4 cd A−1), and reasonable lifetime (180 h at >100 cd m−2). Uniform emission to the eye was attained from thin and highly flexible textiles featuring a large emission area of 42 cm2, without resorting to planarization of the partially wavy-shaped (valley-to-peak height = 2.7 μm) fabric electrode. The key enabling factors for the functional emissive textile are the characteristic in situ electrochemical doping of LEC devices, the 'dry' spray-sintering deposition of the active material, and the attractive mechanical, electronic and optical properties of the fabric-based electrode.

sted, utgiver, år, opplag, sider
Institute of Physics (IOP), 2016. Vol. 1, nr 2, artikkel-id 025004
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URN: urn:nbn:se:umu:diva-124284DOI: 10.1088/2058-8585/1/2/025004ISI: 000399176000006OAI: oai:DiVA.org:umu-124284DiVA, id: diva2:950629
Tilgjengelig fra: 2016-08-01 Laget: 2016-08-01 Sist oppdatert: 2018-06-07bibliografisk kontrollert

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Lanz, ThomasSandström, AndreasTang, ShiEdman, Ludvig

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