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Salt Concentration Effects in Planar Light-Emitting Electrochemical Cells
Eindhoven University of Technology, Netherlands.
Umeå University, Sweden.
Eindhoven University of Technology, Netherlands.
Eindhoven University of Technology, Netherlands.
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2011 (English)In: Advanced Functional Materials, ISSN 1616-301X, E-ISSN 1616-3028, Vol. 21, no 10, 1795-1802 p.Article in journal (Refereed) Published
Abstract [en]

Incorporation of ions in the active layer of organic semiconductor devices may lead to attractive device properties like enhanced injection and improved carrier transport. In this paper, we investigate the effect of the salt concentration on the operation of light-emitting electrochemical cells, using experiments and numerical calculations. The current density and light emission are shown to increase linearly with increasing ion concentration over a wide range of concentrations. The increasing current is accompanied by an ion redistribution, leading to a narrowing of the recombination zone. Hence, in absence of detrimental side reactions and doping-related luminescence quenching, the ion concentration should be as high as possible.

Place, publisher, year, edition, pages
Wiley-VCH Verlag , 2011. Vol. 21, no 10, 1795-1802 p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-141462DOI: 10.1002/adfm.201002360ISI: 000291448300005OAI: oai:DiVA.org:liu-141462DiVA: diva2:1145756
Note

Funding Agencies|Dutch ministry of economic affairs; Swedish Research Council (VR); Wenner-Gren stiftelserna; Knut and Alice Wallenberg Foundation

Available from: 2017-09-29 Created: 2017-09-29 Last updated: 2017-10-06

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Kemerink, Martijn
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