Enhanced LED Performance by Ion Migration in Multiple Quantum Well Perovskite
Metadatos
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INVESTIGACIONMetadatos
Título
Enhanced LED Performance by Ion Migration in Multiple Quantum Well PerovskiteFecha de publicación
2023-12-15Editor
American Chemical SocietyCita bibliográfica
J. Phys. Chem. Lett. 2023, 14, 11610–11617Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/10.1021/acs.jpclett.3c02822Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
Here we study the effect of ion migration on the performance of perovskite light emitting diodes (PeLEDs). We compared aromatic and linear barrier molecules in Ruddlesden-Popper and Dion-Jacobson two-dimensional ... [+]
Here we study the effect of ion migration on the performance of perovskite light emitting diodes (PeLEDs). We compared aromatic and linear barrier molecules in Ruddlesden-Popper and Dion-Jacobson two-dimensional perovskites having multiple quantum well (MQW) structures. PeLED devices were fabricated by using the same conditions and architecture, while their electroluminescence properties and ion migration behavior were investigated. Impedance spectroscopy measurements were used to analyze the PeLEDs, which found a direct link between the barrier molecule type, the device efficiency, and ion migration. The best performing LEDs were based on the aromatic barriers, which present dominant inductive impedance, indicating an earlier onset voltage of radiative recombination. These findings present an approach of how to control radiative emission in perovskite LEDs which opens the way for further improvement in PeLEDs and memristors. [-]
Publicado en
J. Phys. Chem. Lett. 2023Entidad financiadora
Israel Ministry of Energy | Israel Science foundation | Generalitat Valenciana
Código del proyecto o subvención
grant number 1044/23 | PROMETEO/2020/028
Derechos de acceso
© 2023 American Chemical Society. “This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry Letters, copyright © 2023 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.jpclett.3c02822.”
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info:eu-repo/semantics/embargoedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/embargoedAccess
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