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dc.contributor.authorTorre Cachafeiro, Miguel Angel-
dc.contributor.authorKumar Kumawat, Naresh-
dc.contributor.authorGao, Feng-
dc.contributor.authorTress, Wolfgang-
dc.date.accessioned2022-11-18T14:44:31Z-
dc.date.available2022-11-18T14:44:31Z-
dc.date.issued2022-09-08-
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/26141-
dc.description.abstractIn perovskite light-emitting diodes (PeLEDs), the slow response of mobile ions can have an important effect under pulsed operation. In a study by Kumawat et al. , the operation of near infra-red (NIR) PeLEDs was investigated under pulsed operation in the frequency range of 10 Hz up to 20 kHz. The transient electroluminescence (TrEL) of highly efficient devices was measured with varying pulse widths (duty cycle). The TrEL signal was found to show pulse-width dependent features attributed to the characteristic response times of mobile ions. It showed a constant plateau value after turn-on, with lower intensity for lower duty cycles. A large TrEL overshoot was observed at the end of the voltage pulse – which decreased and eventually disappeared with increasing duty cycle. Such TrEL overshoot was previously re-ported for perovskite solar cells and attributed to ionic accumulation effects . In the follow-up simulation study presented in this talk, a model built in the drift-diffusion simulation software Setfos 5.2 (Fluxim) has been used to better understand the role of mobile ions in the TrEL response of PeLEDs under pulsed operation. The results obtained can explain the duty-cycle dependance of the TrEL signal and confirm the slow response of mobile ions as a governing factor, which is important to consider for the development of PeLED-based tech-nologies.de_CH
dc.language.isoende_CH
dc.rightsNot specifiedde_CH
dc.subjectSetfosde_CH
dc.subjectPerovskite LEDde_CH
dc.subjectSimulationde_CH
dc.subjectIon migrationde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleSimulating the transient luminescence of perovskite light-emitting diodes under pulsed operationde_CH
dc.typeKonferenz: Sonstigesde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
zhaw.conference.details8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.publication.reviewKeine Begutachtungde_CH
zhaw.webfeedPhotovoltaikde_CH
zhaw.funding.zhawModellierung und Charakterisierung von neuartigen optoelektronischen Bauelementende_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
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Torre Cachafeiro, M. A., Kumar Kumawat, N., Gao, F., & Tress, W. (2022, September 8). Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation. 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022.
Torre Cachafeiro, M.A. et al. (2022) ‘Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation’, in 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022.
M. A. Torre Cachafeiro, N. Kumar Kumawat, F. Gao, and W. Tress, “Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation,” in 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022, Sep. 2022.
TORRE CACHAFEIRO, Miguel Angel, Naresh KUMAR KUMAWAT, Feng GAO und Wolfgang TRESS, 2022. Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation. In: 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022. Conference presentation. 8 September 2022
Torre Cachafeiro, Miguel Angel, Naresh Kumar Kumawat, Feng Gao, and Wolfgang Tress. 2022. “Simulating the Transient Luminescence of Perovskite Light-Emitting Diodes under Pulsed Operation.” Conference presentation. In 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022.
Torre Cachafeiro, Miguel Angel, et al. “Simulating the Transient Luminescence of Perovskite Light-Emitting Diodes under Pulsed Operation.” 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022, 2022.


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