Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells

Jenatsch, Sandra; Regnat, Markus; Hany, Roland; Diethelm, Matthias; Nüesch, Frank; Ruhstaller, Beat

doi:10.1021/acsphotonics.8b00047

Full metadata record

DC Field	Value	Language
dc.contributor.author	Jenatsch, Sandra	-
dc.contributor.author	Regnat, Markus	-
dc.contributor.author	Hany, Roland	-
dc.contributor.author	Diethelm, Matthias	-
dc.contributor.author	Nüesch, Frank	-
dc.contributor.author	Ruhstaller, Beat	-
dc.date.accessioned	2019-03-15T14:17:26Z	-
dc.date.available	2019-03-15T14:17:26Z	-
dc.date.issued	2018	-
dc.identifier.issn	2330-4022	de_CH
dc.identifier.uri	https://digitalcollection.zhaw.ch/handle/11475/16129	-
dc.description.abstract	Light-emitting electrochemical cells (LECs) are one of the simplest electroluminescent devices and consist of a single emissive organic/salt layer sandwiched between two electrodes. The unique attribute of an operated LEC is the development of a p-doped/intrinsic/n-doped (p–i–n) structure in the active layer in which the doped regions allow for facile transport of electronic charges to the intrinsic region, where charge recombination and light emission occur. However, due to the complex and simultaneous motion of ionic and electronic charges, the examination of the p–i–n structure and the zone where the light is emitted (EZ) is challenging during operation. By analyzing incident photon-to-current conversion efficiency and angular emission measurements with optical simulations, and correlating the results with capacitance measurements, we are able to obtain a clear picture of the p–i–n situation and the EZ within the active layer of a sandwich-type LEC during operation. It is found that the p-doped zone grows to the center of the active layer while the EZ stays closer to the metal electrode and is unchanged over time. Furthermore, optical simulations reveal that the determined EZ limits the external quantum efficiency of the LEC by outcoupling efficiencies of less than 10%.	de_CH
dc.language.iso	en	de_CH
dc.publisher	American Chemical Society	de_CH
dc.relation.ispartof	ACS Photonics	de_CH
dc.rights	Licence according to publishing contract	de_CH
dc.subject.ddc	530: Physik	de_CH
dc.title	Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells	de_CH
dc.type	Beitrag in wissenschaftlicher Zeitschrift	de_CH
dcterms.type	Text	de_CH
zhaw.departement	School of Engineering	de_CH
zhaw.organisationalunit	Institute of Computational Physics (ICP)	de_CH
dc.identifier.doi	10.1021/acsphotonics.8b00047	de_CH
zhaw.funding.eu	No	de_CH
zhaw.issue	4	de_CH
zhaw.originated.zhaw	Yes	de_CH
zhaw.pages.end	1598	de_CH
zhaw.pages.start	1591	de_CH
zhaw.publication.status	publishedVersion	de_CH
zhaw.volume	5	de_CH
zhaw.publication.review	Not specified	de_CH
Appears in collections:	Publikationen School of Engineering

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Jenatsch, S., Regnat, M., Hany, R., Diethelm, M., Nüesch, F., & Ruhstaller, B. (2018). Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells. ACS Photonics, 5(4), 1591–1598. https://doi.org/10.1021/acsphotonics.8b00047

Jenatsch, S. et al. (2018) ‘Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells’, ACS Photonics, 5(4), pp. 1591–1598. Available at: https://doi.org/10.1021/acsphotonics.8b00047.

S. Jenatsch, M. Regnat, R. Hany, M. Diethelm, F. Nüesch, and B. Ruhstaller, “Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells,” ACS Photonics, vol. 5, no. 4, pp. 1591–1598, 2018, doi: 10.1021/acsphotonics.8b00047.

JENATSCH, Sandra, Markus REGNAT, Roland HANY, Matthias DIETHELM, Frank NÜESCH und Beat RUHSTALLER, 2018. Time-dependent p–i–n structure and emission zone in sandwich-type light-emitting electrochemical cells. ACS Photonics. 2018. Bd. 5, Nr. 4, S. 1591–1598. DOI 10.1021/acsphotonics.8b00047

Jenatsch, Sandra, Markus Regnat, Roland Hany, Matthias Diethelm, Frank Nüesch, and Beat Ruhstaller. 2018. “Time-Dependent P–I–N Structure and Emission Zone in Sandwich-Type Light-Emitting Electrochemical Cells.” ACS Photonics 5 (4): 1591–98. https://doi.org/10.1021/acsphotonics.8b00047.

Jenatsch, Sandra, et al. “Time-Dependent P–I–N Structure and Emission Zone in Sandwich-Type Light-Emitting Electrochemical Cells.” ACS Photonics, vol. 5, no. 4, 2018, pp. 1591–98, https://doi.org/10.1021/acsphotonics.8b00047.