Two-dimensional perovskites with alternating cations in the interlayer space for stable light-emitting diodes.
alternating interlayer cations
light-emitting diodes
stability
two-dimensional perovskites
Journal
Nanophotonics
ISSN: 2192-8606
Titre abrégé: Nanophotonics
Pays: Germany
ID NLM: 101607802
Informations de publication
Date de publication:
Jun 2020
Jun 2020
Historique:
received:
30
01
2021
accepted:
15
04
2021
entrez:
21
11
2022
pubmed:
29
4
2021
medline:
29
4
2021
Statut:
epublish
Résumé
Lead halide perovskites have attracted tremendous attention in photovoltaics due to their impressive optoelectronic properties. However, the poor stability of perovskite-based devices remains a bottleneck for further commercial development. Two-dimensional perovskites have great potential in optoelectronic devices, as they are much more stable than their three-dimensional counterparts and rapidly catching up in performance. Herein, we demonstrate high-quality two-dimensional novel perovskite thin films with alternating cations in the interlayer space. This innovative perovskite provides highly stable semiconductor thin films for efficient near-infrared light-emitting diodes (LEDs). Highly efficient LEDs with tunable emission wavelengths from 680 to 770 nm along with excellent operational stability are demonstrated by varying the thickness of the interlayer spacer cation. Furthermore, the best-performing device exhibits an external quantum efficiency of 3.4% at a high current density (J) of 249 mA/cm
Identifiants
pubmed: 36406045
doi: 10.1515/nanoph-2021-0037
pii: nanoph-2021-0037
pmc: PMC9646242
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2145-2156Informations de copyright
© 2021 Yiyue Zhang et al., published by De Gruyter, Berlin/Boston.
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