| Publikationstyp: | Konferenz: Sonstiges |
| Art der Begutachtung: | Keine Begutachtung |
| Titel: | Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation |
| Autor/-in: | Torre Cachafeiro, Miguel Angel Kumar Kumawat, Naresh Gao, Feng Tress, Wolfgang |
| et. al: | No |
| Angaben zur Konferenz: | 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022 |
| Erscheinungsdatum: | 8-Sep-2022 |
| Sprache: | Englisch |
| Schlagwörter: | Setfos; Perovskite LED; Simulation; Ion migration |
| Fachgebiet (DDC): | 621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik |
| Zusammenfassung: | In 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. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/26141 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Keine Angabe |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Publiziert im Rahmen des ZHAW-Projekts: | Modellierung und Charakterisierung von neuartigen optoelektronischen Bauelementen |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
Dateien zu dieser Ressource:
Es gibt keine Dateien zu dieser Ressource.
Zur Langanzeige
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.
Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt.