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dc.contributor.authorDiethelm, Matthias-
dc.contributor.authorSchiller, Andreas-
dc.contributor.authorKawecki, Maciej-
dc.contributor.authorDevižis, Andrius-
dc.contributor.authorBlülle, Balthasar-
dc.contributor.authorJenatsch, Sandra-
dc.contributor.authorKnapp, Evelyne-
dc.contributor.authorGrossmann, Quirin-
dc.contributor.authorRuhstaller, Beat-
dc.contributor.authorNüesch, Frank-
dc.contributor.authorHany, Roland-
dc.date.accessioned2020-01-30T14:39:07Z-
dc.date.available2020-01-30T14:39:07Z-
dc.date.issued2019-11-25-
dc.identifier.issn1616-301Xde_CH
dc.identifier.issn1616-3028de_CH
dc.identifier.urihttps://www.dora.lib4ri.ch/empa/islandora/object/empa:21596de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/19345-
dc.description.abstractIn light‐emitting electrochemical cells (LECs), the position of the emission zone (EZ) is not predefined via a multilayer architecture design, but governed by a complex motion of electrical and ionic charges. As a result of the evolution of doped charge transport layers that enclose a dynamic intrinsic region until steady state is reached, the EZ is often dynamic during turn‐on. For thick sandwich polymer LECs, a continuous change of the emission color provides a direct visual indication of a moving EZ. Results from an optical and electrical analysis indicate that the intrinsic zone is narrow at early times, but starts to widen during operation, notably well before the electrical device optimum is reached. Results from numerical simulations demonstrate that the only precondition for this event to occur is that the mobilities of anions (µa) and cations (µc) are not equal, and the direction of the EZ shift dictates µc > µa. Quantitative ion profiles reveal that the displacement of ions stops when the intrinsic zone stabilizes, confirming the relation between ion movement and EZ shift. Finally, simulations indicate that the experimental current peak for constant‐voltage operation is intrinsic and the subsequent decay does not result from degradation, as commonly stated.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofAdvanced Functional Materialsde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subject.ddc540: Chemiede_CH
dc.titleThe dynamic emission zone in sandwich polymer light‐emitting electrochemical cellsde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1002/adfm.201906803de_CH
zhaw.funding.euNode_CH
zhaw.issue1906803de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume2019de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.snf162828de_CH
zhaw.author.additionalNode_CH
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Diethelm, M., Schiller, A., Kawecki, M., Devižis, A., Blülle, B., Jenatsch, S., Knapp, E., Grossmann, Q., Ruhstaller, B., Nüesch, F., & Hany, R. (2019). The dynamic emission zone in sandwich polymer light‐emitting electrochemical cells. Advanced Functional Materials, 2019(1906803). https://doi.org/10.1002/adfm.201906803
Diethelm, M. et al. (2019) ‘The dynamic emission zone in sandwich polymer light‐emitting electrochemical cells’, Advanced Functional Materials, 2019(1906803). Available at: https://doi.org/10.1002/adfm.201906803.
M. Diethelm et al., “The dynamic emission zone in sandwich polymer light‐emitting electrochemical cells,” Advanced Functional Materials, vol. 2019, no. 1906803, Nov. 2019, doi: 10.1002/adfm.201906803.
DIETHELM, Matthias, Andreas SCHILLER, Maciej KAWECKI, Andrius DEVIŽIS, Balthasar BLÜLLE, Sandra JENATSCH, Evelyne KNAPP, Quirin GROSSMANN, Beat RUHSTALLER, Frank NÜESCH und Roland HANY, 2019. The dynamic emission zone in sandwich polymer light‐emitting electrochemical cells. Advanced Functional Materials [online]. 25 November 2019. Bd. 2019, Nr. 1906803. DOI 10.1002/adfm.201906803. Verfügbar unter: https://www.dora.lib4ri.ch/empa/islandora/object/empa:21596
Diethelm, Matthias, Andreas Schiller, Maciej Kawecki, Andrius Devižis, Balthasar Blülle, Sandra Jenatsch, Evelyne Knapp, et al. 2019. “The Dynamic Emission Zone in Sandwich Polymer Light‐Emitting Electrochemical Cells.” Advanced Functional Materials 2019 (1906803). https://doi.org/10.1002/adfm.201906803.
Diethelm, Matthias, et al. “The Dynamic Emission Zone in Sandwich Polymer Light‐Emitting Electrochemical Cells.” Advanced Functional Materials, vol. 2019, no. 1906803, Nov. 2019, https://doi.org/10.1002/adfm.201906803.


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